Many people have trouble being confident around women especially in the beginning of the DJ career. I myself am one of those people. However, like some already said, there are different types of confidence, you might be confident in your math skills but feel really insecure around women. This hint is more of an extension of the hint that was already given here by GigaloDJ about pretending you already know a woman so you feel more confident around her, except its a broader version. You don't just have to make it look like you know her, or think of her as any other girl. You can also boost your confidence by thinking about one of those things you're really good at right before you approach her. You know how when you ace a test and the rest of the class fails it, you feel that arrogance and get that ****y smile everytime you think about it. Well, if you remember a moment like that which happened a short while ago (1 or 2 days ago, anything older probably wont get you that attitude anymore) like that and get into that arrogant mood and then aprroach a girl while you're still in that mood, chances are the conversation will go a lot smoother. Just make sure you have something to say when you come up to her and that that something is NOT about that that test that you aced (cuz chances are she wont care about the test especially if she's not in your class and if she doesn't even know you). And yes, I can say from personal experience that it works.