how do i find out if he's bi/gay?

if i were you i might just ask him.

 

But it's feelings - in all my experience (and my mates have almost always been guys too) - when it comes to admitting feelings and talking bout them, men don't often like to even with their man friends. Tis weird. I know totally gay-only guys who are in touch with their feelings but a lot of men and bi men aren't that open. Sucks but that's life and also why I'm searching for females (asides to have good womanlysex)