Sing and reply
Medically-informed · Sources: CDC · Updated June 2026
Why it helps
Serve-and-return: the core drill of language and social wiring.
How to do it
- Sing a short simple song with exaggerated expressions
- Pause — leave space for your baby to answer with coos
- Echo their sound back, then continue the song
No stop signs — this one only ends when one of you is done smiling.
Sources
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