My son started at about six or seven years old by simple facial tics such as blinking scrunching nose and mouth grimacing.Then in puberty went to head nodding head shaking humming like you mentioned touching hair then inapropiate comments. As lara said alot of children can experience tics at some point in there childhood but to get a firm TS diagnosis in the uk you have to have two physical tics and one vocal tic for more than a year.Its best to record tics noticed and when started so you can go to the doctor clear on info .