Communication, month by month

4 months

Giggles & sound play

Source window: 4–6 months. Skills emerge across this range, not on a monthly deadline.

What communication can look like

Giggles, laughs, and responds to facial expressions.
Looks at interesting objects and reacts to sound-making toys.
Explores vowel sounds, sometimes with consonants, and blows raspberries.

Everyday examples

aaaaagoo · daaaaa · a raspberry

Illustrative sounds, words, or phrases—not a required vocabulary list. Welcome gestures, AAC, and home languages too.

A little moment to try

Enjoy a silly face or sound together. Follow the response and pause without asking for a repeat.

Ask Joey AI

A little card to share

Explore cards inspired by the CDC 4-month checkpoint. One card is free; subscriber extras are coming soon.

Explore family cards

Grounded in published guidance

ASHA · Birth to 1 year

Milestone lists describe common skills, not an assessment or diagnosis. AI can be imperfect. For individual concerns, speak with a speech-language pathologist or pediatrician. For adults only; no personal child details or saved conversations.