I agree.

And to respond to the original post by Zen:

I have had the same thing problably for a long time now. Walking down the street or just sitting somewhere with people passing by looking me in the eye and then looking away with a smirk or smile on their face. It annoyed me for a while because it felt like they where laughing at me. Like I forgot to wear pants and didn't notice, or as if they thought I was wearing a rediculous hat or something. (I look pretty normal, so that can't be it) Even though it doesn't bother me anymore and I simply smile back at them it still feels sometimes as if there's something wrong, like I walk around with a strange posture or something. Anyway, a smile is a smile. I'd rather have them smile at me then spit or something.