My LO is 16 months and he doesn't really talk except shaking or nodding his head when i ask him if he wants something . He will babble a lot and looks at you when he babbles as if trying to communicate with u and says "Ma Ma" but that's about it . Should I be worried ? My frens' kids are already talking those 1-2 words and they are younger than him. Honestly , I'm a bit worried ..