DS13 is very tactile and seems to need to use his hands. Sometimes it can be problematic like when he annoyed his 4th grade teacher by applying his scissors to every single pencil in his pouch or constantly touching things (including my clothes) when we are seated next to each other. It is better than he can satisfy his impulses without destroying objects or bothering other people. By the way, he is much better able to control himself now than at age 9. I think that stress can exacerbate this behavior but it often occurs in relaxed situations as well. If you are concerned that is is a motor tic, then mention it to his doctor.
