Facial Aversion

Everyone remembers their mom telling them to not stare at somebody. Maybe it was the kid in the wheelchair, the lady who had suffered a stroke, or maybe some really creepy homeless dude.
Working in at a large public institution, I get to see this ingrained behavior play out on a day to day basis. Everyone tries to strike a balance between intrigue and apathy, but they go about it in different ways. Some, like myself are balancers. We allow ourselves to look for a moment if we 'balance' that look with another at a different person either beside them or in the other direction. Other people are peripheral-peekers. They use their peripheral vision to peek from under their ballcaps, behind their dark glasses, or even from a ducked head... hoping to catch a glance... they don't care how long they stare because it is only a partial stare. There are the 'you caught me's' who chance to stare until caught at which point they seek the comfort of looking at the ground until they are safely out of range of the individual. There are others, but I'll reserve that for the comment section (please share) or another post. I need to get to the more important issue of the types of people who attract our stares.
Today I noticed that I have facial aversion to different groups or types of people, so I assume that others do too. For example, I don't allow myself to look at extremely pretty or extremely ugly women. I think that it helps them not think that I am creepy. I don't look at the bodies of the physically disabled, but I will look directly into their eyes. I avoid looking at people in immodest clothing, even when I could look into their eyes and avoid their bodies. I never look up in a stairwell in case someone is wearing a miniskirt, and I never look down in a stairwell in case someone is wearing an open blouse or otherwise revealing their cleavage. I will often avoid eye contact with groups of non-white students in case they think that the 'bald white guy' is singling them out. I never look at a women if she is walking alone for fear that she thinks I am going to follow her or treat her as an object of lust.
Alternatively, I don't have the facial aversion problem with most non-aggressive looking men. I generally try to smile at people, but find myself more often than not, simply looking down or away. It just seems easier.