when my baby is 1 month he is not playing with toys and all but when we say his name he randomly see our faces but now he is 3+months and now he is playing with toys and when we call his name he is not replying as fast as he replied previously and playing as usual

A. Previously also your child was not responding to you this is what you think because you will feel the child is responding to you but actually what happened this after the age of three months the response is going to be better now the child is going to respond to loud sounds like this link clapping and anything which is loud and attracted to them because after the age of three months I gain their vision so that is when the respond firmly do a thing but as of now this is normal just give it some more time will definitely see a better change