There's etiquette to be considered, however:
1. If you're str8, you must always pretend you don't care, who's bigger. It's a lie, of course. Every str8 man wants to be bigger than the other guys around him. We're not obsessed over it, but the preferrence will always, always, always be to be the biggest. Any guy, who says it doesn't matter is lying. So, having eyes, naturally, we glance and compare (in passing and when no one's watching us).
2. Peep once (only once) and never STARE

! That's just creepy, and no str8 guy likes another man staring at his pecker, unless the guy's his doctor. You just can't trust a guy, who's always checking out your package. Is he gay? Is he imagining us f'ing? Does he think I'd enjoy porking him or being porked by him? It's creepy and a surefire way to make a quick enemy. Furthermore, never peep and smile -- that makes my blood boil.

Hate that!
3. Try to avoid facing another guy, while either of you are showering. Unless you and a buddy are deep in conversation, before and during your shower, you've got no reason to be facing another naked guy, and there's just too many ways this can be taken the wrong way. You're alone in a gang shower, when guy/s enter, give them your back and mind your own business (unless you're in prison, of course), or you might be taken as some kind of freaky exhibitionist.
4. Don't strike up a conversation with another dude in the shower. It's just weird - creepy, like Silence of the Lambs. Trust me on this.
5. Don't touch anything. Don't play with your sausage. Don't touch anybody else's.
There's probably more, but, I can't think of them.
Being str8 myself, I can't really say what rules go for gays. I've got gay buddies, but, I really can't say what their deal is, when they're together.
Personally, I'm more comfortable showering with an openly gay guy, than with a guy I don't know what the hell's up with. If a gay buddy looks youknowhere or makes a wisecrack, at least we can both laugh about it. That's better than some dude you don't know leering at your business like Nicholson in
The Shining.
By the way, I'm new around here. Howdy, y'all. :biggrin1: