My old gym had open showers so it was hard not to look. I miss going there when the Brazillian jujitsu class would all pile in. One guy was fucking huuuuge,
The gym I go to now has individual showers with curtains, and a lot of guys do the towel dance and wear shorts in the steam room, sauna and hot tub. I'll sneak a peek if a guy doesn't seem shy, and if someone hot seems interested I'm not opposed to showing off myself or having a little fun in the shower.
There are guys at my gym who are just offensive about it, though. They come just to hang out in the locker room. You can tell just looking at them that they have no interest in exercising. A few of them pretend to work out, but they just sit on the machines where they can see who is going into the locker room and follow guys back in there. There are guys who are obvious about it and walk around the locker room with a cock ring on. One of them started rubbing my leg in the hot tub, which is pretty much sexual assault. The showers have a place to undress and dry off, and then the actual shower so there are two curtains. I've seen a guy open the outside curtain and wait in the shower stall across to creep on people getting out of the shower. I've had to leave the steam room because an old guy started jerking off while staring at me. I've caught guys taking videos of people going in and out of the shower area and steam room. It's really just gross, and there doesn't seem to be a time of day that I can go where there isn't at least one of them hanging out there. I imagine there is a google sheet somewhere that they use to sign up for time slots or something...
Like I said, I'll try to sneak a peek and I do enjoy admiring guys results at the gym. The locker room is hallowed ground, and I know how gross it feels to be creeped on by someone you have absolutely no interest in. Unless someone is obviously showing off, I leave them alone.