I, myself, get very uncomfortable around strangers. Sure, if they ask for directions or anything, I'll gladly help, but I have sort of this mental picture of how they see me. It's like when they look at me without any intentions to say anything or make any contact, I can feel the prejudice towards me, how they pity me or laugh at me in their head, or think I'm strange. Although, I have learned to live with it, I chose it myself by choosing how to look.