What to Expect on MSN5mon
When Do Babies Start Laughing?
Remember: That first laugh is just one part of your baby's ongoing exploration of sound and vocalization. If your 3-month-old makes a lot of joyful noise — squealing, chirping, cooing ...
BBC4y
When do babies start laughing and what do they laugh at?
University of London is an expert on why babies laugh and author of The Laughing Baby. At Goldsmiths' InfantLab, he leads an exciting branch of child development research designing laughter ...