We have noticed that when she gets upset, she waves her hands in the air while she cries, and doesn't stop until you pick her up and get her attention(quite a feat in and of itself).
Now, her understanding is amazing, however. She can respond to requests(where is the dog, where is daddy, where is your belly button, etc), responds to long commands(go put your toy away and come back for dinner, sit down, arms up, give me your hand, etc), knows all of the alphabet by sight(points to letters when you ask), knows lots of animals(again, points when asked). So, I'm really not sure what to think at this point. Do I just have a stubborn child who doesn't want to talk? Or should I pursue more?
Oh, and also, she doesn't like to engage with other kids. She'll approach them, but just wanders off and plays in the dirt or grass instead of playing, or hits them and walks off to play by herself(we're working on gentle touch right now).
Sorry this is all over the place. It's late, I'm tired, and we've had a long, tantrum filled day!