I have heard that looking at faces is difficult for people with autism. I don’t understand it, but the impression I gotten from reading descriptions from high-functioning adults that the facial recognition hardware has a bug which causes some sort of feedback loop that is uncomfortable.
What if there was a Google Glasses application which put ovals in front of people’s faces? Blue ovals if they were not looking at you, pink ovals if they are. Maybe a line to show where the center line of their face is.
Maybe that would make it more comfortable to be around collections of people.