I think my little man may have some other mild sensory seeking behaviours too, as well as the touching/in your face thing. Not sure if it would be anything which needs to be seen to by a doctor/specialist/OT, but he does a few other things which are sensory seeking things too, like blocking and unblocking his ears if there is a lot of noise, touches his penis a lot for comfort (to the point if he's really anxious, he gives himself a rash!), likes heavy, warm things on him, like a heat pack, a basket of washing fresh out of the dryer, his little brother laying on him.