In my personal experience, I notice people associate and befriend other good-looking people. I think it kinda just happens. I don't think I have any unattractive friends; male, female, straight or gay. I don't pick friends based on looks, but how hard they make me laugh and how dependable and fun they are. They just happen to be good looking. I notice guys around here look similar, and their interests are similar, too. A certain group of guys I'm talking about are bros. They dress alike, (usually black or white t-shirts ((No Fear or Volcom)) with hats, shades, jeans or khaki shorts with skater shoes), they have similar cars (trucks or BMWs and such), they all go dirt biking and race quads and chill and just drink beer. Maybe it's just the acceptance of the group. I dunno. I'll pay more attention and see what's going on with that.