my son is 3 months today

hey good to know that.well my son is 3 1/2 months now.he was born on sep27th .how about urs? plzz send me info ok?/ then wat is he taking ?? only mom milk or any other food also??? well my son started to smile after he was 50 days old. i guess even ur baby must be able to smile at u right now. and he has started to turn sideways and slowly learning to fall on his tummy. but is still unable to do it.well respond to me plzzzz