thank you ppl... your answers are really helpful😊

dancing n singing really works... sometimes you feel like a monkey😅 ... but your baby definitely loved it... 😆

you can introduce mantras as in gayatri mantra.. sing it loudly..  u can sing rhymes.  As sheeba said u can also dance along.  They get happy to see something funny :) so u can dance in whichever moves u can.  You can introduce present family members to them. talk to them while doing your work as in what all you are doing.. 

As 4 months can't communicate or understand more... you can sing songs for him. keep some photos( printed photos and not on mobile or laptop) of family members and keep showing and telling about them. Take baby and go for a walk. Don't keep baby all the time at home. Go to park...show some Colors... show sky.&nbsp; Talk , talk and talk.. . <br> You can use rattles, peek a boo game with towel or blanket, can buy playgym..I did..

anytime dear...&#128522;