Gaydar?

So my friend has this undying feeling that she has the perfect Gaydar i mean really? Thats pretty just a load of bull! Hahaha, no offense to you "westaphone" But no one has a perfect gaydar! I mean sure you can have a good one? But a perfect one, doesnt really work out does it? But hey she gave me some tips i guess. My Gaydar is always wrong anyways, hence me 3 introduced by her gay friends.

How to create or refine your current Gaydar [results may vary]
Or so she says:
                       1. If he dresses really well then
                           A: He may be Metro
                           B: He could just have really awesome fashion sense
                           C: He just might be one of those hotties that look good in anything
                           D: Its unlikely, but he may be gay

                       2. If he is REALLY feminine then
                           A: He may be gay
                           B: He might have just grown up near many females = Adaptation
                           C: He could be acting. [In drama camp there was this realy hot guy who was really feminine and did all these things that only a gay guy would. [sounds bad but yeah i said it] Yeah he was straight. He fooled everyone and basically was feeling up every female there because: gay people are the only people girls let touch their breasts... while sober.]

                       3. Just the vibe he gives you
                           A: He might actually be giving out a gay vibe
                           B: Maybe he's giving you the "Go away im straight vibe"
                           C: You could just be hungry

                       4. He's totally checking you/your guy friend out!
                           A: He could be looking at something behind you
                           B: Maybe he is checking you/him out
                           C: He's giving you the stink eye, and you just cant tell.

                       5. He's never had a crush on a girl/ had a girlfriend
                           A: Maybe he just hasnt met the right girl
                           B: He's not into the dating scene just yet
                           C: He's just not into girls
                           D: He just didnt tell you

                        6. Bi totally leads to Gay right?
                            -Not all the time. So don't ever assume that.

*Footnote*
So unless he has a shirt saying "Gay is the New Black" [I have that shirt haha] or something related to that, you know like a rainbow belt, bracelette or etc. then i'm saying DONT ASSUME. I mean hello, did you notice all the options associated with the various things?! Gaydars DON'T WORK. Most of the time haha.
And b-t-dubs, not all gay guys are feminine.
So dont think that.