Does it help to talk to a baby who can’t answer back?
Narrating socks, dinner, and the walk to the car feels silly. Research on early language suggests it is doing real work, and the tone matters as much as the words.
’I’m putting on your left sock now. Here comes the right one.’ Said out loud, to someone who cannot yet answer, it sounds a little absurd. Most parents do it anyway, often without deciding to, narrating a morning that nobody asked them to narrate. It turns out that habit is not a quirk. It is one of the more useful things a parent does all day, and the science behind it is more specific than ’talk more’.
The running commentary is doing something
The nonprofit ZERO TO THREE, which focuses on infant and toddler development, describes this kind of real-time narration (naming what you are doing as you do it) as one of the clearest ways young children learn to connect words to the objects and actions around them. Saying ’you love your soft socks’ while dressing a baby is not filler. It hands the baby a word at the exact moment the thing the word refers to is right there in front of them, which is precisely the kind of match a young brain is built to notice.
The same guidance points to something easy to miss: responding to a baby’s coo, a raised arm, or a look toward the door is itself a form of conversation, long before any recognisable word comes back. Answer a coo with a coo, or say ’you want to be picked up’ when two arms shoot up, and the baby learns that sound leads somewhere, that a signal gets a reply. That expectation, that talking is a two-way exchange, is being built well before it can be tested with actual words.
The singsong voice is not baby talk
There is also a very specific tone worth defending here: the slower, higher-pitched, more melodic way many adults speak to infants without being taught to, sometimes called parentese. It is easy to dismiss as silliness, but it is not nonsense syllables. It uses real words and real grammar, just stretched and exaggerated in a way infants happen to prefer and track more easily.
Researchers at the University of Washington’s Institute for Learning and Brain Sciences tested what happens when parents are coached to use more of it, in families followed from when their babies were six months old through 14 months. Coached parents increased their parentese use noticeably more than a comparison group, and their babies babbled in about 43 percent of recorded sessions against roughly 30 percent for the other group, then went on to produce more words by 14 months, based on both recordings and what parents reported. Nobody needed to buy anything or set aside a special hour. The intervention was, in effect, a way of talking that parents already had access to.
The back and forth matters more than the monologue
The same research group followed families further and found that the biggest gains showed up in conversational turn-taking: not just how much a parent said, but how often a baby’s sound was met with a reply, and a parent’s word was met with a coo, and so on. Between 14 and 18 months, families who had been coached showed a marked jump in these exchanges, and their babies’ vocabularies grew accordingly. The lesson is not ’lecture your baby more’. It is closer to ’leave room for the reply, however wordless it still is, and answer it like it counts’.
A baby’s coo is not noise waiting to become language. It is already a turn in the conversation.
Whatever language you already speak is the right one
None of this asks for a special vocabulary or a curriculum. The words that matter most are the ordinary ones already circulating in the house, in whichever language or languages the family actually speaks together. A grandparent narrating a walk in one language and a parent singing in another are not competing; they are both giving the baby a rich, responsive back and forth, which is the ingredient the research keeps pointing to, far more than the specific tongue it happens to arrive in. A home where several languages are spoken freely is not a complication to manage. It is simply more of the good material.
So the running commentary on socks, dinner, and the walk to the car is not something to feel silly about. Keep talking through the ordinary moments, leave a gap for whatever sound comes back, and treat that sound like it means something, because to the small person making it, it already does.