I find it difficult to do (to make myself obvious as im in the closet) and also separate friendliness from flirting...so i get crushes on girls that are just being friendly!
Part of the problem is that people who aren't out or are less confident in being LGBT+ flirt subtly by being friendly. Its a way of avoiding judgement from less welcoming members of society for many. You have to pay attention to see if they're paying especial attention to you!
It can be hard to tell when girls are flirting. I find that noticing if they're checking you out when you're not looking helps.....I just get a vibe when someone is bi/lesbian. As for how to flirt yourself, I find that making eye contact, smiling and giving compliments is a way to show interest.
Mmm I find that eye contact with increased frequency of lip licking/biting and close proximity are good indicators.
Just try to avoid developing feelings for someone before you know them. Some people only flirt for fun or for the attention and without any real interest.
I feel in the same way. I'm out to some people, but I'm still uncomfortable flirting with other guys. And yes, I can't separate a friendly from a flirting guy. Cannot really say why this happens, I think it's because of the lack of experiences we might have with flirting, I'm so timid and I'm not as out as some of other friends, per example (I fear flirting with someone that is not gay and it turn out bad). hope we can solve this issue soon.