There is a stretch of mealtimes, somewhere between starting solids and starting to talk, that is mostly guesswork. A baby is upset. Is that still hungry, done, bored, or wanting the thing on the other side of the table? You try each one in turn and the meal ends in tears about a third of the time.
Signing does not eliminate that, but it narrows it. A baby who can indicate more or all done has replaced a guess with information, and at a high chair that is worth a lot.
What is baby sign language, actually?
A small set of hand signs, usually borrowed from American Sign Language, used alongside speech with a hearing baby.
Two things it is not. It is not a separate language you are teaching, and using a handful of borrowed signs is not the same as learning ASL, which is a full language with its own grammar and a Deaf community it belongs to. And it is not a replacement for talking. The signs go with the spoken word, always, never instead of it.
For mealtimes specifically, the useful scope is small: three or four signs that cover the things that come up at every single meal.
When can a baby actually start signing back?
Usually somewhere around ten to twelve months, though you start signing long before that.
The American Speech-Language-Hearing Association's communication milestones for birth to one year places gesture use in the ten to twelve month band: by that stage children point, wave, and show or give objects, and they imitate and initiate gestures for social interaction and play. That is the developmental window where deliberate signing tends to appear, because the underlying skill is gesture, and signs are gestures with agreed meanings.
This creates a gap that surprises people. You may sign at every meal from six months and see nothing back for four months. That is normal and not a sign that it is failing. During that period the baby is receiving, which is the necessary first half.
Two practical implications:
- Start when solids start, but set expectations at zero. Signing from six months is fine and gives the receptive half a long runway.
- Do not judge it before eleven or twelve months. Stopping at nine months because "it did not work" means stopping right before the window it usually works in.
Which signs should you start with?
Four, at most. More than that and nobody is consistent enough for any of them to land.
| Sign | What it solves | Why it is first |
|---|---|---|
| More | The single most common mealtime request | Highest frequency, so most repetitions |
| All done | Ends the meal without a meltdown | Gives the baby a way to opt out |
| Eat | Names the whole activity | Used before the meal, not just during |
| Milk | Distinguishes thirst from hunger | Resolves the most common ambiguity |
Start with more and all done alone. They are the two that change your day immediately, and each is used many times per meal, which is what builds the repetitions.
Add eat and milk once the first two are being produced, not before. The temptation to add signs for every food is strong and it is the main way this stops working: fifteen signs used occasionally produce nothing, while two signs used forty times a day produce results.
How do you actually teach a sign?
At the moment, with the word, every time.
The mechanics take about ten seconds to learn:
- Make the sign at the moment the thing happens. Not before, not after. As you offer more food, sign more.
- Say the word out loud at the same time. Signing is always paired with speech. The spoken word is the point; the sign is the bridge.
- Do it every time, by everyone. One caregiver signing inconsistently produces nothing. Everyone who feeds the baby needs the same four signs.
- Do not require it. Never withhold food until a baby signs. That turns a communication tool into a demand, and it backfires.
That fourth rule is the one people get wrong. The sign is offered as an option, not extracted as a toll.
Consistency across caregivers is why a chart on the wall beats a video: the grandparent doing Tuesdays and the partner doing bedtime both need to make the same shape, and they will not stop to look up a video mid-meal. Our baby sign language mealtime poster is laminated and built to live at eye level near the high chair for exactly that reason.
What do the first few months look like?
Mostly nothing, then suddenly something. It helps to know that in advance.
- Weeks one to four. You sign more and all done at every meal. The baby watches your hands sometimes and ignores them mostly. This feels pointless. It is not.
- Months two and three. Occasional evidence of understanding: the baby stops and looks when you sign all done, or gets more animated when you sign more before offering food. Still nothing produced.
- Around month four of signing, or ten to twelve months of age. Something approximate appears, usually more, usually at the exact moment you had given up paying attention. It is often unclear whether the first one was deliberate.
- The following few weeks. Once the first sign is real, the second arrives much faster, because the baby has grasped that hand shapes carry meaning.
The most common reason this fails is quitting during the first phase. Nothing about weeks one to four tells you whether it is working, because nothing is supposed to be happening yet. Decide up front that you will sign until twelve months before evaluating, and the question stops being tempting.
One thing that genuinely helps during the silent stretch: sign at the transitions, not throughout. Signing all done as the meal actually ends, every meal, gives that sign a clean and repeated association. Signing continuously through a meal blurs it.
What if the sign does not look right?
Accept it. A baby's version almost never looks like the adult version.
Early signs are approximate in the same way early words are. A baby signing more may just bang two fists together, and all done may be one hand waving vaguely. That counts.
The AAP makes a parallel point about spoken language that transfers directly. In its guidance on language development from eight to twelve months, it notes that for your child, a word is any sound that consistently refers to the same person, object or event, and advises treating that consistent sound with the respect of a legitimate word while continuing to model the correct version yourself. The same applies to a sign: if the gesture consistently means more, it means more. Keep making the accurate version, and the approximation converges over time on its own.
What actually matters is consistency, not accuracy. A wrong-looking sign used the same way every time is communication. A perfect sign used once a week is not.
What does signing do, and what does it not do?
It gives a baby a channel for a specific message earlier than speech does. That is the claim, and it is enough.
You will see much bigger claims made about baby signing, particularly that it makes children talk sooner or scores better later. Those claims are contested, the evidence is mixed, and none of them are necessary to justify doing it. Signing is worth it because meals go better this month, not because of something it might do in five years.
What it does not do:
- It does not replace talking, and it should never be used instead of speech.
- It does not prevent frustration entirely. A baby who can sign all done still sometimes throws the bowl.
- It does not need to be complete. Four signs is a finished project, not a partial one.
How does this fit into the rest of mealtimes?
It sits alongside cues you are already reading.
Long before signs, babies communicate about feeding with their bodies. The AAP's guidance on how often and how much a baby should eat lists early hunger cues including licking lips, rooting, putting a hand to the mouth and opening the mouth, and makes the point that crying is a late cue. Signing does not replace any of that. It adds a deliberate channel on top of the involuntary ones, and mainly it helps at the end of a meal, where the body cues for finished are much less obvious than the ones for hungry.
In practice the sequence across the first year runs: cues in the newborn stage, covered in our guide to the newborn feeding schedule; then solids, where signs your baby is ready for solids covers readiness; then signing layered on during the solids stage. If mealtimes are going badly for reasons other than communication, what to do when your baby refuses new foods covers that separately.
The mealtime routine chart covers safe food shapes and sizes for the same stage, and the four pack bundles the sign language and routine charts with the feeding trackers. Everything for this stage sits in baby and feeding.
When do you stop?
When speech takes over, which happens on its own.
There is no weaning process. As words arrive for the same meanings, babies drop the signs without being asked, usually keeping one or two of the most useful for a while after the rest have gone. Nobody has to manage this.
If you have concerns about your child's communication development at any point, speak to your pediatrician. This post is general parenting information, not medical or clinical advice, and a professional who knows your child is the right person to answer questions about their development.
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