Quote:
Hey
So many times iv'e arroached a girl in a bar with just "hey how are you, can I buy you a drink?" and they say sure, then leaves after getting the drink... So obviously that is not the right way to buy a girl a drink ..
Anyways when shuld I? Isnt guys kinda supposed to buy a girl a drink in a bar when ha wants to get to know her and stuff?
When shuld I offer her a drink? What shuld I respond if she asks for a drink right away? Thats a bad sign isnt it if she does? Or could it mean that she wants to get to know me but also wants a drink?
Help me out!

I think the whole buying drinks thing is misunderstood.
The problem is telegraphing sexual interest with a line like "Can I buy you a drink?". That is fatal. You are placing her value above yours and that gives her the impression you are beneath her.
For this reason, the standard PUA theory is just to never buy girls drinks. For many AFC's this is good advice.
The thing is, it is bad to make an issue of it either way. RAFC's often seem to have some trouble with this, and can come across as cheap. Telegraphing sexual interest is bad, but so is making any kind of issue about money.
I almost always buy girls drinks. The reason is, I usually buy guys drinks also. I am a generous guy. This is an attractive quality, and I'm not going to change it. I usually have more money than whoever I'm drinking with, and they usually appreciate it. It is just stupid for me not to when it is no big deal to me financially but may be an issue to the other guy/girl.
The way I buy girls drinks however, is natural. Do not make a big deal out of it. Say as little as possible, just get 'em in. Do it the way you would for a guy. Don't do it to initiate conversation, do it as a progression of a conversation.
Saying something like "Have you tried this? It rocks. " and purchasing rare, interesting beverage gets you round the whole "What are you having?" question. You are just sharing a new experience with them rather than doing shit for them.
Most times, girls will usually go up and get the next round anyway. Let them. Make out you are doing them a favour when you do.
If she asks directly, then you need to get her to provide some kind of reason why you should eg "And why should I do that?". Accept almost anything she says as a reason.