jakeblack saidI'm a masculine guy, most people wouldn't think i was gay by just walking past me.
Does being gay qualify you as being NOT masculine or perhaps "sissified"? I'm gay, dude. I'm really gay. My boyfriend is gay. But we too are really masculine by definition: having qualities or appearance traditionally associated with men, esp. strength and aggressiveness.
I'm not trying to tear down your topic/forum but have to say I think of gay men as masculine. Yes, there are plenty of those who flit and are effeminate and garner much attention as gay men and that's their choice for whatever the reason but I believe, the less obvious and most of us, even in the gym who happen to be gay, are masculine in nature.
So how do we find each other (especially if you have "weak gaydar")? You play it cool, do your workout and eventually, sly glances and yep, perhaps, underwear might clue you in to the sexual orientation of the gym guys around you. We are everywhere and, give it time, because the others like you are just as curious and will look back eventually, too.