4-6 months

Your baby expects responses from you

Communication is becoming more two-way

The Millie's Team By The Millie's Team · Parenting Notes

Around week twenty-five, your baby is starting to notice when their sounds, smiles or movements get a reaction. They may pause and watch, waiting to see what you do.

What is happening

Babies are learning that the people around them respond. When a noise leads to a smile or a wave leads to a word back, they begin to understand that they can shape what happens next. This is the start of two-way communication.

Is this normal

Yes. Some babies are very vocal and clearly waiting for replies, others are quieter and watch carefully for facial reactions. Both styles are normal and both are real conversation in their early form.

What you may notice

What helps right now

What to expect next

Over the next few weeks, these little exchanges will become longer and more playful. Babbling often follows soon after, with sounds that begin to feel more like real conversation.