It might be stereotypical, but gay males are VERY GOOD at picking out other gay males.One could have a police lineup of random men,have a gay male on the other-side of the one way glass panel, and the gay male WILL pick out the other gay males within the lineup.
I work with a lot of gay males in the graphics industry and I am friendly with a few(a couple of Dems and Libertarians). When I asked them what their reaction was when the FIRST time they saw Obama on TV, ALL the gay men said:
“Oh, He’s a Mary”...
Is there a more elaborate meaning to that phrase or is it just "he's gay"?