well, to all people of any sort of sexual orientation, I have to recommend the book "Brain sex" as a primer to sexual development/psycology... they touch heavily on homosexuality i nthe book as well as male and female developement patters/ drives.
Further, There's a qualifier for this question, are you looking for hookups, or relationships?
If it's hookups, from what I understand, gay MALES anyways have it easy, appearence, and "Hi, i'm interested" or the such, small talk, because men have soaring levels of tetosterone (horny juice) and (this is all hearsay on my part...) are fairly promiscuous and quick-to-bed if it's a hookup you're after.
As far as relationships, you may want to approach it more from the PUA(Mystery) perspective which is fmac, Find, Meet, Attract, Close. Meaning you'll want to add value to yourself, lower their defenses, show confidence and worthiness, and be Alpha if you want to hold the 'reins'. If you're a *chick-dude, bottom, la fem, whatever they considere themselves, you'll want to qualify, play the role, submit, etc etc....
I think most of the PUA stuff would work much the same, but if it's just hookups you're after, if you're halfway decent looking/clean and halfway not a social retard, you should be F-closing everyday, without having to go through the effort of routine/scripts. ("Should" from an abuility standpoint, not necessarily my advice.. and again... everything I know about gays is hearsay or second hand... no, really..
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ps, I totally heard George Carlins voice when you said "who *happens* to be gay" LOL.