I've observed that there are seven types of crotch watchers:
1) The look-at-any-place-but-the-crotch guys. They always seem extremely interested in the grouting on the shower-room wall directly in front of them or, when facing me, my nostrils. Their whole being, their every thought is concentrated on one thing only: "Don't look! Don't look! Don't look!" If they ever saw another man's cock, they'd die of mortification. They'd be outed! They're not to be confused with #2. . .
2) They're also look-at-any-place-but-the-crotch guys, but these are just oblivious. They've never thought about cocks or balls or vaginas or the birds and the bees. For them, the penis is truly only for urination. They supposedly fill up our nudist camps and resorts where no one ever ever ever looks at a naked body with anything but scientific detachment.
3) The sneak-a-quick-peek-and-hope-no-one-sees-you type. They time their genital surveillance when they think you're looking elsewhere. They'd make great submarine captains. "Up periscope!" for a quick scan of the sea above, then "Down periscope!"
4) The down-and-to-the-siders. They think you don't know they're scoping out your junk because their faces are directed toward you. They're probably developmentally retarded; babies still in the cradle learn to follow where someone's eyes are directed.
5) The casual lookers, like myself. The it's-there-so-why-not-take-a-look? type. We've accepted that when faced with a nude male, the cock is much more interesting than the floor, wall or ceiling (unlike #1 who think these are endlessly fascinating.)
6) The gawkers. The it's-there-so-I'll-stare-as-long-as-I-want-to type. These have a somewhat bulldog tenacity. A pink giraffe could enter the showers and go unnoticed by these fellows. They're on a mission.
6) Very similar to #6. The casual, natural gawkers. The keep-their-eyes-trained-down-below-while-naturally-carrying-on-a-conversation-with-you type. They're undoubtedly oblivious to their gaping. In their minds, they're carrying on naturally. They may occasionally look back up for a few seconds as the conversation requires, but their eyes quickly drop back down for crotch surveillance. I seem to get a bunch of #6 guys.