Simple answer is: You don't.
The only way you know for sure that someone is a lesbian is if they tell you they are, or are open about it.
talk to them get to know them better
I think it's entirely possible to love someone you barley talk to but you probably know everything about them.
you know if you dont miss your parter as much as you did. Or you have fallen for someone else. And if you never talk to them.
I think I would just be there for them and be ready to listen when they are ready to talk.
not giving a very good firts impression
yes, anika moa is a MAJOR lesbian nah jj she is a lesbian though, i dont know how much but if you listen to the edge (94.2fm) then you will hear them interviewing her and they talk abotu her lesbiananity (if that is even a word) lol :) hope that helps
talk to him
it helps if you talk to him, then he can get to know you.
if you notice he/she gets weird when you talk about your boyfriend/girlfriend then you know they still love you but if they dont get weird when you talk about them then they are fine with you going out with someone else because they have moved on.
if they dont talk to you then they probly dont like you... If you glance in their direction are they suddenly doing something else? If so then they may like you.
i dont know but i think it is tall talk or small talk
Well if they know your enemies with that person then they are not a true friend. If they dont know talk to them and tell them they you have deep,bad feelings for that person. He/she will understand.