A couple of days ago I was traveling with my girlfriend on a bus. It was a double decker, and we sat in the first row on the upper deck, so we could look at the road through the windshield. When the bus departed my girlfriend started reading a book, while I occuppied myself by reading the signs on the road and studying the map. Next to us sat a fat boy, maybe around 12 years old, who observed the road intensely, and read the signs aloud to himself. At the border checkpoint he went to his mother, who was seated at the back of the bus, but later he returned. At one point his mother came and sat with him for around an hour. During that time he talked to her uninterruptibly, and her replies were mostly "aha" or "uh uh". Then he again sat quietly alone, tapping with his fingers from time to time. Five hours passed and we were approaching our destination. When I was putting my shoes back on I noticed that the boy was doing the same.
Of course, I can't tell if our "aspie boy" was really an aspie, but...