My son is 3 1/2. He will be 4 in July.
My son always answers questions with "OK!" as if he is granting us some huge favour even though we're giving him what he has already asked for.
He also likes to say "OK fine!" when we tell him to do something.
And he's starting to get frustrated that we don't understand his babbles. When I ask him what he means he will say "I'm saying....bla bla bla" and then continues to babble but the frustration in his "I'm saying" is palpable. Because of the babble I can't tell if his communication is simply to tell a need or if he is trying to have a conversation. We still can't have much back and forth with him and he generally can't tell us if something is bothering him other than "I want a drink" etc He also communicates via movie quotes and he does use me as a prop in his reenactments of movie scenes. He also like it when I then jump in and play the scene with him.
He will come up to me and say "Mommy, look at what I found!" and show me whatever toy he is playing with. He doesn't hand it to me, but he makes sure I can see it and acknowledge it. He can point at what he wants and where he wants it, etc. That's where I get confused. At church, he will seek out his friends and play with them. They seem to like him. I don't know if that is just because they're still young to really notice differences or if my son actually is "normal" just delayed in speech. But then, if he is bored with them or they do someething he doesn't want to, he will just wander off without a word. It sometimes seems random when he takes off. He was the same with his cousin when she was over. He would be calling our her name, and asking to play and she got him to play "spy" with her (he's never seen a spy movie so he had nothing to go off of other than her instructions) but then he'd suddenly grab a favourite toy and play on his own, ignoring all of her attempts to get his attention.
My son still doesn't understand time or distance. My inlaws were over recently and they had brought our niece along (she is 2 1/2 years older than DS) and now he's asking after her everday and we have to explain she lives far away and we can't go to her house. Every time someone is at the door he thinks it is her. I'm working on teaching him "first" and "after" right now.
Even now, we are watching "Wreck it Ralph" (for the gazillionth time) and he pointed out, "Look, Ralph fall down!" and he kept repeating it over and over until finally looking at me and I had to say "Yeah, he fell down" before he moved on. He does have an obsession with falling though. He thinks falling is hilarious and makes his toys fall over and over and he will hang off the couch and say "I'm falling!"
I'm starting to think he's NOT autistic. Just some minor delays that can be dealt with As his vocab improves, the other issues seem to improve too. I don't know.