
Last updated 2026-07-10
TL;DR
Most nonverbal children learn "bye bye" through consistent modeling, hand-over-hand gesture prompting, and pairing a wave with sound every single time someone leaves. Teach the wave before you expect the word. If your child has no words by 16 months, connect with a speech-language pathologist through early intervention. Progress is real and measurable, even when the spoken word takes months to arrive.
Why is "bye bye" such a good first word to target?
"Bye bye" shows up on nearly every early vocabulary list speech-language pathologists use, and for good reason. It's a social word with a clear, predictable trigger: someone is leaving. That predictability matters a lot when you're teaching a child who finds language confusing. The moment of departure happens many times a day, which means you get repetition after repetition without any special setup.
The American Speech-Language-Hearing Association (ASHA) treats functional communication, meaning communication that gets something done in daily life, as a core goal for children with limited verbal output [1]. "Bye bye" fits that perfectly. It's a greeting word, but it also signals a whole social exchange. Children who learn it tend to generalize it faster than single nouns because the situation that calls for it is so obvious.
Children also respond emotionally to goodbyes. There's usually a clear, charged moment: a parent walks toward the door, a grandparent picks up her keys, a teacher says "see you tomorrow." Emotion and attention are two ingredients that speed up word learning. You're not fighting for the child's focus the way you might be with a picture on a table.
One more thing. "Bye bye" is motorically simpler than most first words. It's a reduplication, the same syllable repeated. Research on early word development shows reduplicated forms ("mama," "dada," "bye bye," "night night") are among the first to appear in typical development, probably because the motor pattern repeats and becomes automatic faster [2].
What does "nonverbal" actually mean, and does it change the approach?
"Nonverbal" gets used loosely by parents and even some clinicians. It usually means one of three things: a child with no consistent spoken words at all, a child with sounds but no recognizable words, or a child who had words and lost them. The way you teach "bye bye" shifts a little depending on which one you're dealing with.
For a child with no words but consistent sounds, you're shaping those sounds into approximations. A child who says "buh" already has the building block of "bye." You're not starting from silence. You're refining.
For a child who has lost words, especially if the regression happened after 18 months, that warrants a conversation with a pediatrician and likely a developmental evaluation [3]. You can still work on "bye bye" at home, but you want professional eyes on what's happening.
For a child who has never produced speech sounds consistently, the gesture comes first. Always. You do not wait for a word before teaching the wave. The wave is communicative, it's social, and for many children it becomes the platform a sound gets layered onto later.
If your child uses an AAC device (a speech-generating device, a PECS board, or a symbol-based app), "bye bye" should live in that system too. A child who taps a symbol to say goodbye is communicating. That counts, and it often shows up weeks or months before the spoken word does.
What is the step-by-step method to teach bye bye?
Here's what actually works, in order. Skip steps your child already has. Start at step one if they don't.
Step 1: Pair every departure with the same phrase and wave. Every time you or anyone in the house leaves, or ends a play session, you say "bye bye" and wave. Same words, same hand motion, every time. Consistency is the job. Inconsistent models slow everything down.
Step 2: Get down to the child's level. Drop to eye level before you model. Children imitate facial movements they can see clearly, and the mouth shape for "b" is visible. This matters more than parents expect.
Step 3: Use hand-over-hand prompting for the wave. Gently lift the child's hand and move it in a wave right after you wave. Then say "bye bye." You're teaching the gesture and pairing it with the word at the same time. Over time, give less physical help (this is called fading the prompt) and wait to see if the child starts it on their own.
Step 4: Add a pause and an expectant look. After you model "bye bye" and wave, pause for 3 to 5 seconds and look at the child with an expectant expression. Don't repeat yourself right away. That pause is an invitation. Children need more processing time than adults tend to give them.
Step 5: Reinforce any attempt, more than perfect ones. If the child waves with one finger, that counts. If they say "buh," that counts. If they look toward the door, that's communicative intent, so acknowledge it. Say "yes! Bye bye!" and wave again. Applied behavior analysis research is consistent: reinforcing approximations builds toward the target faster than waiting for perfection [4].
Step 6: Fade the prompts gradually. Over days and weeks, cut down how much physical help you give. Eventually you're just looking at the child and waiting. If they need the prompt again, give it without frustration and try fading again next time.
The whole process runs anywhere from a few days to several months depending on the child. Nobody has precise population data on timelines for this exact skill. Progress depends heavily on the child's overall communication profile, motor abilities, and how much the environment supports the learning.
Should I start with the wave or the word?
Start with the wave. This isn't a compromise. It's the correct developmental sequence for most children with delayed speech.
Gesture use in typically developing children shows up before words, usually around 9 to 12 months [2]. For children with delayed speech, the gesture-to-word pathway is often the most reliable one you have. When a child has a functional gesture for goodbye, they're already communicating. The spoken word gets added on top of a gesture that's already working.
Speech-language pathologists sometimes call this building on the gesture platform. Once the child waves consistently, you have a moment of reliable engagement to work with. You know the wave is coming, so you can be ready to model the word in exactly the right instant.
There's a motor learning argument here too. For children who may have childhood apraxia of speech, a motor speech disorder where the brain has trouble planning the movements for speech, pairing a physical gesture with a sound can help the sound emerge. The movement seems to prime the motor system. That's one reason programs like DTTC (Dynamic Temporal and Tactile Cueing) use multisensory input [5].
How do AAC and sign language fit into teaching bye bye?
Both are legitimate, useful, and often faster routes to functional goodbye communication than waiting on speech.
American Sign Language has a sign for "bye" (an open-hand wave, which overlaps with the common social wave anyway). If your family or your child's school uses sign, teach the ASL sign. It won't slow speech down. The research on this is clear. A 2006 review in the Journal of Speech, Language, and Hearing Research found no evidence that AAC use suppresses speech development, and some evidence it supports it [6].
For children who use a dedicated AAC device or a low-tech symbol board, "bye bye" should be one of the first symbols loaded and easy to reach. Put it on the home screen or the first level of the system, not buried three menus deep.
PECS (Picture Exchange Communication System) is another option. In the PECS protocol, you teach the child to hand over a "bye bye" picture during departure moments. It's lower-tech and doable at home without much training.
Not sure which system fits your child? A speech-language pathologist who specializes in AAC can run an evaluation. You can access that through early intervention (for children under 3) or through your local school district (for children 3 and older under IDEA Part B) [7].
How many times a day should I practice, and when?
You don't need drill sessions for this. Honestly, drilling goodbye at a table with flashcards is about the least effective thing you could do. "Bye bye" is a naturalistic word. It belongs in context.
Aim for every real departure through the day. Depending on your household, that's maybe 5 to 15 natural chances. A parent leaves for work. A sibling heads to school. You close a video call with grandma. A therapy session ends. You leave the room. All real moments.
You can also build low-stakes practice. Set up a quick "goodbye game" with a favorite toy: wave goodbye to the toy, tuck it behind a pillow, bring it back. This works well for younger toddlers because it adds a little object permanence play, and the toy coming back is its own reward. Keep these under 5 minutes and follow the child's lead.
Don't skip goodbyes because they feel hard. Some parents cut departures short because they set off distress. That's understandable. But if the distress is severe, that's worth raising with a therapist. Predictable goodbye routines, even short ones, tend to lower departure anxiety over time, not raise it.
What if my child is 2, 3, or 4 and still not saying any words?
Get an evaluation. That's the single most important thing, and I'd say it no matter which word you're targeting.
The American Academy of Pediatrics recommends developmental surveillance at every well-child visit and formal developmental screening at 9, 18, and 24 or 30 months [3]. If a child has no words by 16 months, no two-word phrases by 24 months, or loses any language skills at any age, AAP guidance says that warrants immediate evaluation, not a wait-and-see approach.
For children under 3, early intervention services are federally mandated under IDEA Part C. You can self-refer. You don't need a pediatrician's referral, though it helps to have one. Services come at no cost to the family if the child qualifies [7].
For children 3 and older, the school district handles evaluation under IDEA Part B. Again, you can request this in writing. In most states the school has 60 days from your written request to finish the evaluation (timelines vary a bit by state) [7].
For 3 and 4 year olds with no words, speech therapy is almost always warranted, and for children on the autism spectrum, autism-specific speech therapy approaches that address joint attention and social communication are often the right fit. A 4 year old with no words is not too old to make progress. Earlier is better, and the data on early intervention outcomes is fairly consistent on that [8].
Could echolalia be used to get bye bye started?
Yes, and it's underused.
Echolalia is the repetition of words or phrases heard from other people or from media. Plenty of nonverbal and minimally verbal children use it. Rather than treating echolalia as a problem, speech-language researchers like Barry Prizant have argued for building on it as a communication scaffold [9].
If your child repeats things they hear, they may already be echoing "bye bye" in spots where it doesn't look functional yet. Pay attention. When you catch it, reinforce it right then even if it wasn't a true communicative goodbye. Say "Yes! Bye bye!" and wave. You're connecting the sound to its meaning through repetition in context.
Scripts help too. A short, predictable goodbye routine with the same words each time ("okay, bye bye, see you later!") can become something a child learns as a unit and then uses on purpose. This is a well-documented pathway for children with autism [9].
Want to understand what echolalia means developmentally and how to use it as a bridge? That's worth reading up on separately. It changes how you read what your child is doing and opens up strategies you might not have tried.
What about children with apraxia of speech? Does the method change?
Somewhat, yes.
Apraxia of speech is a motor planning disorder. The child knows what they want to say. The message just doesn't get reliably sent to the muscles that produce speech. For these children, the trouble with "bye bye" is motor, not cognitive or motivational.
For children with suspected or confirmed apraxia, the changes are these:
1. Repetition volume matters more. Children with apraxia need many more trials of the same motor pattern to build automaticity than typical learners do. 2. Tactile cueing helps. Some SLPs use techniques like PROMPT (Prompts for Restructuring Oral Muscular Phonetic Targets), where the therapist physically guides jaw, lip, and tongue movements. Parents can learn simplified versions. 3. The target sound needs to be stable before you add complexity. Get "buh" before "bye," get "bye" before "bye bye." 4. Consistency of the model matters even more. The child's motor system is trying to build a reliable plan. If the model keeps changing, the plan stays shaky.
The Apraxia Kids organization (formerly CASANA) has parent resources at apraxia-kids.org that are genuinely good and free. If you think apraxia might be involved, seek out a certified speech-language pathologist who lists CAS (Childhood Apraxia of Speech) as a specialty.
How will I know if my child is making progress?
Progress with nonverbal children is real but sometimes quiet, and parents often miss it because they're watching for the spoken word while meaningful steps happen underneath.
Here's what actual progress looks like, roughly earliest to most developed:
| Stage | What it looks like |
|---|---|
| 1. Increased attention | Child looks at the person leaving more consistently |
| 2. Body orientation | Child turns toward the door or person leaving |
| 3. Gesture with prompt | Child waves when hand is physically guided |
| 4. Partial gesture independently | Child raises arm or moves hand without full prompt |
| 5. Full wave independently | Child waves on their own at departure |
| 6. Sound with gesture | Child makes a vocalization (any sound) while waving |
| 7. Approximation | Child produces "buh" or "bah" while waving |
| 8. Recognizable word | Child says something close enough to "bye" that others understand |
| 9. Spontaneous use | Child starts the goodbye without any prompt |
Every row in that table is real progress. Keep a short log, even just a note in your phone after each session. "Waved with minimal help today" is data. It helps you see movement that feels invisible day to day.
If you've worked consistently for 6 to 8 weeks with no change across any of these stages, that's a signal to bring in a speech-language pathologist if you haven't already, or to talk it through with your current therapist. Plateau isn't failure. It's information.
Are there apps or tools that can support this at home?
A few categories are genuinely useful, and one is mostly noise.
AAC apps (like Proloquo2Go, TouchChat, or Snap Core First) are the highest-evidence category. These are real communication systems, not language toys. They take training to use well, and an SLP should be involved in choosing and programming one for your child.
Video modeling apps and platforms let children watch someone else perform the goodbye gesture and word over and over. Video modeling has reasonable research support for children with autism, and you can set it up with nothing fancier than your phone [10].
Some families find a tool like Little Words, built specifically to support speech practice for neurodivergent kids, helps with structured practice between therapy sessions. The Little Words app has a quiz that matches activities to where your child currently is. Still, no app replaces a qualified SLP. Tools like this work best as supplements.
The category that's mostly noise: passive language-learning apps where the child watches content and is supposed to soak up words. For children with speech delays, passive exposure is rarely enough. Active, prompted, reinforced practice in natural contexts is what moves the needle.
What should I say to family members who don't get it?
This is a real practical problem. Grandparents, aunts, uncles, and family friends often either over-prompt ("say bye bye! Say it! Bye! Bye bye! Come on!") or skip the whole thing because they feel awkward.
Both extremes backfire. Over-prompting without waiting takes away the child's chance to initiate. Skipping it takes away the learning opportunity entirely.
Here's a short script you can hand off: "When you're leaving, just wave and say 'bye bye' clearly. Then wait about 5 seconds and look at him/her with a smile. If she waves or makes any sound, say 'bye bye!' back with real enthusiasm. If not, just say 'bye bye' once more and go. Don't repeat it ten times or ask her to say it."
That's it. Short, doable, no jargon. Most family members can follow it if you give them something concrete instead of a lecture on communication development. A quick laminated card by the front door is not overkill.
Frequently asked questions
At what age should a child normally say bye bye?
Most children produce their first words, including social words like "bye bye," between 10 and 14 months. By 12 months, many children wave goodbye even without a spoken word. If your child has no words and no consistent gestures by 16 months, AAP guidelines recommend evaluation, not a wait-and-see approach. A speech-language pathologist can assess what's going on and whether early intervention is appropriate.
Is waving the same as saying bye bye?
Functionally, yes. Waving goodbye is a communicative gesture that carries the same meaning as the spoken word. Speech-language pathologists count consistent, intentional gestures as communication. For many children, the wave shows up weeks or months before the spoken word. Teaching the wave first is the right sequence, not a lower standard.
My child used to wave bye bye and stopped. Should I be worried?
Loss of a skill that was already present, whether a gesture or a word, is a red flag the AAP says warrants immediate evaluation. Regression can have many causes, and most are treatable. Don't wait to see if the skill comes back on its own. Contact your pediatrician and ask for a developmental evaluation. If your child is under 3, you can also self-refer to your state's early intervention program.
Can a nonverbal child learn bye bye through videos or TV?
Passive video exposure alone is unlikely to teach a nonverbal child a functional communication word. Children with speech delays generally need active, prompted, reinforced practice in real social contexts. That said, video modeling, where a child watches a specific short clip of someone performing a gesture and word and then practices it, has some research support, particularly for children with autism. That's different from background TV.
How do I teach bye bye to a child who avoids eye contact?
Eye contact isn't required. Focus on the physical departure cue (someone putting on a coat, picking up keys, moving toward a door) as the trigger rather than waiting for the child to look at you. Say "bye bye" and wave even if the child isn't looking directly at you. Over time, predictable routines around departure create enough context that many children begin orienting toward the person leaving even without direct eye contact prompting.
Should I use sign language for bye bye or just the English word?
Both at the same time is the most common recommendation from speech-language pathologists. The ASL sign for goodbye is essentially the same social wave most English-speaking families already use. There's no evidence that using sign language delays speech development, and the research suggests it may support it. If your family or school already uses ASL or another sign system, be consistent with whichever sign they use.
What if my child gets upset at goodbyes and cries instead of waving?
Distress at departure is developmentally normal in toddlers and common in children with anxiety or sensory sensitivities. Keep the goodbye routine short, consistent, and calm. A brief ritual (wave, say bye bye, leave within 30 seconds) beats a long drawn-out departure. Over time, predictable routines reduce separation anxiety for most children. If distress is severe or prolonged, discuss it with your pediatrician or a behavioral therapist.
How is teaching bye bye different for a child with autism?
Children with autism may have reduced joint attention, which makes the social trigger for "bye bye" less salient. You may need to do more to create and highlight the departure cue. Visual supports (a picture schedule showing "goodbye time"), social stories about leaving, and very consistent routines all help. Some children with autism also use scripted phrases from media as their first "bye bye," which is a valid communicative pathway worth supporting.
Can I teach bye bye without a speech therapist?
Yes, and the strategies here are things any caregiver can run at home. Consistent modeling, gesture prompting, expectant pausing, and reinforcing approximations are all evidence-based and accessible. That said, if your child isn't yet waving, has no words by 16 to 18 months, or has had a regression, involving a speech-language pathologist matters. Home strategies work best alongside professional support, not instead of it.
What other first words should I work on alongside bye bye?
The most functional early targets for nonverbal children are usually social words ("hi," "bye bye," "no," "more," "help") and words for highly motivating items or people specific to that child. Your child's speech-language pathologist can help you build a target word list based on your child's communication profile. Generally, words the child has already attempted or shown interest in are good candidates.
How long does it take to teach a nonverbal child to say bye bye?
Honest answer: nobody has good population-level data on timelines for this specific skill. Progress depends on the child's overall speech and motor profile, how consistent the practice is, and what support is in place. Some children produce a recognizable approximation within 2 to 4 weeks of consistent practice. Others take several months to reach the gesture stage. Track small steps and adjust your approach if nothing moves after 6 to 8 weeks.
What is hand-over-hand prompting and is it safe?
Hand-over-hand prompting means gently placing your hand over the child's hand and guiding it through a motion, in this case a wave. It's a standard technique in speech and occupational therapy. It is safe when done gently and paired with positive reinforcement. Some children who are tactile-sensitive find it uncomfortable. If your child pulls away strongly or becomes distressed, ease off and consult an OT or SLP for adapted approaches.
My child says bye bye at home but not in public. Is that normal?
Yes, this is called a stimulus generalization problem and it's extremely common. The child has learned the behavior in one context but hasn't connected it to the broader range of situations where it applies. You address it by deliberately practicing in new settings with new people. Start with one slightly novel context (a different room, a familiar relative), succeed there, then expand. Generalization takes intentional practice. It usually doesn't happen automatically for children with speech delays.
Sources
- ASHA (American Speech-Language-Hearing Association) - Augmentative and Alternative Communication practice portal: Functional communication, meaning communication that accomplishes real-world goals in daily life, is a core clinical target for children with limited verbal output
- Iverson JM, Goldin-Meadow S. Gesture paves the way for language development. Psychological Science, 2005.: Gesture use in typically developing children precedes first words, appearing around 9 to 12 months, and reduplicated forms like bye bye emerge early due to simpler motor patterns
- American Academy of Pediatrics - Developmental Surveillance and Screening: AAP recommends formal developmental screening at 9, 18, and 24 or 30 months, and says no words by 16 months or loss of any language skills warrants immediate evaluation
- Cooper JO, Heron TE, Heward WL. Applied Behavior Analysis, 3rd ed. Pearson, 2020.: Reinforcing successive approximations (shaping) builds toward a target behavior faster than waiting for perfect performance
- Apraxia Kids - Dynamic Temporal and Tactile Cueing (DTTC): DTTC uses multisensory input including gesture and tactile cueing to support motor planning for speech in children with childhood apraxia of speech
- Millar DC, Light JC, Schlosser RW. The impact of augmentative and alternative communication intervention on the speech production of individuals with developmental disabilities. Journal of Speech, Language, and Hearing Research, 2006.: Review found no evidence that AAC use suppresses speech development and some evidence it supports spoken language emergence
- U.S. Department of Education - IDEA (Individuals with Disabilities Education Act): IDEA Part C mandates free early intervention services for children under 3; IDEA Part B mandates free evaluation and services through school districts for children 3 and older; school districts have 60 days from written request to complete evaluation in most states
- CDC - Learn the Signs. Act Early.: Research consistently shows earlier intervention produces better developmental outcomes for children with speech and developmental delays
- Prizant BM, Duchan JF. The functions of immediate echolalia in autistic children. Journal of Speech and Hearing Disorders, 1981.: Echolalia can function as a communication scaffold; scripted phrases learned as units can be used functionally and are a documented pathway for children with autism
- Bellini S, Akullian J. A meta-analysis of video modeling and video self-modeling interventions for children and adolescents with autism spectrum disorders. Exceptional Children, 2007.: Video modeling has research support as an effective intervention strategy for children with autism spectrum disorders
- ASHA - Late Language Emergence practice portal: Children with no words by 16 months or no two-word combinations by 24 months meet criteria for late language emergence and warrant speech-language evaluation
