Your having a great time, your the life of the party, most the girls are loving you but then you approach one of the hotter girls and she does the more than common "Are you gay?" line.
Your first instinct; "What the hell are you talking about I'm not gay" or "no I'm not you are"
Congrats you just failed the shit test.
Your value just went down, and you have no potential with that girl.
So what should you do?
Girls aren't that mean. They won't just go up to a gay guy and call him gay. 99% of the time they won't actually think your gay, unless your doing something totally wrong in this pickup game.
When they do call you gay, their congruence testing you to see if your as high value as you seem at the moment. It's a good thing, shes interested in you and is doing a test (probably even subconsciously). She won't go shit test any random guy by calling him gay.
Now How Should You Reply
Don't be Reactive
By being reactive, your displaying to her that you care about the outcome and what she thinks. That will get her un-attracted right away. You need to show her that your living in your own world, and that you find it hilarious that someone could actually think such a thing.
Heres a list of replies to her attacks.
She says "are you gay?" you reply with
"Please, I'm not going to prove anything you dirty girl"
She says "Why are you so gay" you reply with
"Accidentally had read Playgirl thinking it was the good one cause it said girl in it"
She says "you like it up the but" reply w/
"Hey just cause I like it up the but doesn't mean I'm gay"
She says "you look gay" you reply with
"Yes gay guys do dress well, thanks"
These should get you a good idea of what your replies should be like. Their all nonreactive. You can even just ignore what she says and start talking about something else and not even finish the sentence. But try and be playful, and never even hint that she's offended you.
There's great benefits after passing this congruence test. The girl is now more attracted to you and you can go off onto any thread that you want. She'll be laughing at whatever you say. Your IN!