I have 16 month old baby boy. What have been coming to my notice that he doesn't respond well to his name, but when I say No Arham he stops what he is been doing & do other things or come to me. Also when I say loudly as in scolding he comes to me crying. Other than this when he is busy in something, playing or curiously researching something, he doesn't respond to his name even if I call multiple times. When it comes to eye contact, generally he is not doing eye contact but when I remove my glasses he tries figure out my eye nose mouth. Also when I sings his favourite rhymes he makes good eye contact & looks at me till the rhymes continue. He has recently started spinning all the containers covers or whatever he gets, he makes it spin & play. Also about speech, he only speaks gibberish nothing meaningful. Should I be concerned or this is normal 16 month old behaviour???