actually I don't really understand where you define the problem.
If you're happy being gay then be gay.. in terms of
psychologically, homosexuality is no longer defined as a problem,
but and it's a new area of research. This is because of the fact
that homosexuality is both factors of nature and nurture, therefore
we can't really do much to change it, since it involves our
genetics. =) In fact, I see gays and lesbians as a different
culture, just like Chinese, Malay, and Indians, it' just adds color
to the society. So please stop thinking you're weird or
different.
Back to your problem, I would say that it works the same way as it
would for a girl. First, you need to know if the guy is attracted
to you or not, I mean if not it will prove to be a one way r/s in
the end. Well, to know this I think it works the same as how would
one get to know a girl is she is interested or not.. Got to find
out yourself.
However, at the age of 16, you may still be unstable of your sexual
identity and preference with all the hormones churning without
control, so it will take sometime for the subconscious confusion in
your mind to settle... =)