Thanks for the responses and the link. Yes, it's my 9yo son. I did actually ask him about it, and he says he can stop them. He doesn't really stim much in class, he saves it for recess and other "allowable" times. I never thought they were tics, but it was brought up by someone, so I figured I should check it out. I didn't think tourette's would explain his bizarre social communications and interactions, though. I really don't see it as tourette's, asd makes so much more sense and fits more. He doesn't seem to have such major difficulties with pragmatic language (it's certainly below his intellectual level, but it's not a big deficit from "typical"), but I was reading up, and it looks like that is not always a huge thing with asperger's. More reading to do, I'm sure!