A somewhat awkward question for me to ask because it could be taken as rude, but how do you tell if other guys are gay? Just by asking? I imagine that would be annoying though having to always ask
It's not an awkward question I had to hide who I was for a half-decade, I like when people ask me questions. It shows they are interested/care.
As for your question, it's a struggle. Even more so for me. The guys who you CAN tell are gay are the ones that I am not attracted to. I support and love effeminate dudes, I'm just not into them. Unfortunately, that means that it's really difficult to find other gay guys.
I would never go up to someone I didn't really know and ask them if they're gay. Even though it shouldn't be taken offensively, the fact of the matter is that it could upset someone to be asked that, and at the very least make them uncomfortable. The number one way to find other gay guys is online. Because we live in a society where people are assumed straight, online is the best way to find other gay guys that have similar interests. There's definitely a much higher percentage of young (<25) gay guys who have online profiles than there would be straight guys. Kind of within that online category is an app called Grindr, which honest to God practically every openly gay male uses. It sorts by distance and is for gay guys only.
Apart from online, then it goes to gay "scenes". That can be a gay bar, club, hockey league, a LGBT group, anything.
And then finally, there's just honesty. If there was a guy that I was really unsure of if he was gay, I'd make sure he knew that I was and then gauge whether or not he was from that. If we were getting "close" and I told him I was gay and he didn't say "Oh me too", that's enough of a clue for me to assume not and just focus on that person as a friend.
Thanks for tuning in to this episode of "Ha Gheyyyyyyy!", with your host Manked the Majestic.