My baby boy is smart lol

He rolled over at one week checkup on table at doctors with doctor there,he has been smiling and giggling since one month. He has been cooing since one month. He has been holding his head up and turning it side to side since a couple hours after birth. He has been focusing since birth. He has known his name for a while now. He thinks it funny when his older sibling does something mean and he Cry's and than I put them in time out and he stops crying and laughs. Lol he sits with support but not much support. He has been living his hands and feet for a couple months now also. He grabbed the bottle from me the other day and held it in his mouth by himself. He is trying to sit up on his own (he gets his head and neck up for a minute and the top part His back from laying down) and when his older sibling sits in front of him even if not looking at him he will start kicking his legs and kick them even when he wasn't moving before and my second to youngest baby started crying because of this and he started laughing. They are already mean to each other. When he's eating his bottle and someone starts eating something he stops eating his bottle and gives really dirty looks. He will look at something and pick it up also and look at it. He is also teething bad. He is such a happy baby and he has gotten huge!!! He was born June 17th