I'm always looking for guns, I don't see many try to conceal at all around here, but I'm always little disappointed when I see somebody wearing a gun related shirt or hat and isn't carrying.It was a real eye opener (no pun intended) for me to make a conscious decision to go out shopping one day and deliberately try to make eye contact with people. They really aren't looking, and even more so, are trying NOT to. They seem to be focused on what they're looking to buy, where their kids are, and not bumping into you relying on peripheral vision. If you catch someone actually looking at you, they generally look away as soon as you notice them. Sometimes you get the "hey" nod, and the rare instance will be a polite "how's it going?".
It's the same thing as looking at yourself in the mirror and seeing a bit of a print that to you screams "GUN"!!! but you know exactly where it is.