The best way to appear confident is to be truly excited about yourself and the ideas you have. Why wouldn't you be excited about yourself? If you're not, examine yourself and make sure that you're the kind of person that deserves to be confident. We always say on here "looks don't matter, just be confident", but it's impossible to be confident if you're not happy with the person you are. Become a person that you enjoy being and then be excited about existing as that person. Even if you don't pull the girl, at least you're having an awesome night out.