When do babies smile?
babies have a reflex smile they mimic your smile with until they're about 1.5 months old. Your baby's reflex smile will disappear then, and her first real smile will make an appearance somewhere between one and a half to 3 months (or 6 and 12 weeks) of life.
Babies typically begin to smile any time between 4 weeks and 4 months of age.
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