Aspergers is a little different mush more mild than austim. Of course everyone is different. However, most Autistic people don't like loud noises, crowds, making eye contact, and my brother for sure repeats action often tapping a foot in the place place walking back and forward. Maybe this is because is autism is more severe. My brother doesn't talk only a few word like "outside" and "want drinky". Like the parents of the ausitic girl, we know what triggers my brother and try to avoid putting him into a position where he is not comfortable. My brother has never flew, if a baby started crying on a plane my brother might freak out on the plane. Since my brother is over 40 years old all people would see is a man freaking out on an plane that that would not be good. Here is a good website that explains common austism behaviors.
Autism Fact Sheet: National Institute of Neurological Disorders and Stroke (NINDS)