not sure about les but for male gays, there are those who play
the male and female roles. Female ones are more effeminate, that
goes without saying. The male ones are a little more difficult to
spot.
I personally have a good friend like that. No obvious signs just
that he's very gentle when he speaks, dresses well etc. He never
gave me the impression that he's interested in me.....and i guess
these people, they don't touch you at all if they know you're
striaght. Very disciplined people.
And.....he's a flying instructor! haha and his ex....boyfriend
(erm girlfriend) is a doctor! haha! Looks can deceive.