Babies may begin to smile around 2 months and chuckle around 4 months. By 6 months, they'll be laughing up a storm. You can make funny noises, play peek-a-boo, or tickle your baby to encourage a ...

Watch: This dad has the very best yardwork buddy in his adorable baby boy who simply can not stop laughing at him!

Smiling, laughing, and crying are therefore crucial to interacting with the rest of the world. You probably won’t catch a baby laughing all by herself. “It’s a social response,” Mireault says.

Babies typically start laughing between 3 to 4 months of age.This first laugh is often a response to something they find ...