At this stage, your baby is ready for fun and some kinds of social interaction with you or anyone else. So be prepared for more amazing milestones and lots of laughter in the coming weeks!
Here’s what you could look forward to with your 4 months old baby:
Smiles on his/her own, looks at you, or makes sounds to get your attention
Chuckles but not yet a laugh when you try to make your baby laugh
Reacts unhappily if you take his/her toy away
Make sounds with more vowel and consonant combos
Makes sounds as response when you talk to him/her
Turns head toward your voice
Opens mouth toward breast or bottle if hungry
Looks at his/her hands with interest
Mesmerized by his/her own feet
Keeps his/her head level when you are holding him
Holds the toy when you put it in your baby’s hand
Raises up on his/her arms when on tummy
Rolls over