I realized I was gay at about age 19. I'd had a number of homosexuist experiences, but thought that was what most guys did. (on reflection, maybe I was right)
But unless I am at a gay bar or otherwise gay-related function or event, I have a really difficult time telling who is gay and who is not. In fact, that distinction rarely enters my mind. My thinking tends to believe that everyone is str8 unless they do something to make me think differently.
When I met Hayden (my last EX) we were in a straight bar in Trinidad. I thought he was gorgeous and was immediately attracted to him. But he was there with a girl and I had no reason to think he was anything other than a heterosexuist. Fortunately, I found out differently later that night. That same theme has been with me all my life.
I just don't know who is and who isn't.
How 'bout you?