Wear something that will attract a gay man. Basic white wife-beater shirts (athletic style undershirts) are great all-around shirts for gay men. They show off your physique and are super cheap. Then, when you see a cute guy, watch him. Try to make eye contact. When he sees you looking at him, don't look away. If he keeps looking at you while you keep looking at him, then it's likely you're into each other. At that point, one of you needs to stop what you're working on and keep the eye contact as you walk past the other guy and on to someplace you might be able to be somewhat alone. Maybe a men's room or shower. The other guy will probably follow. When he does, extend your hand for a hand shake, say hello, and hold his hand for a moment. If you made this first move, he'll probably make the second. If you feel brave, tell him you think he's got a great body and see how he replies. If it's going well, try feeling his muscles. Feel his upper arms, then his chest. If he doesn't object, you're going to have sex pretty soon. It's time to decide his place or yours.