the "secret" is to make sure you come across as shy or quiet and not alouf (sp?) or as an asshole that just won't talk to them.
once you've mastered that, then you'll be nailing all the chicks that like the shy guys. esp if they other guys you are out with are loud assholes.
although if you are going to a bar looking for action, that is the wrong reason to go. instead get wasted. then worst comes to worst you go home with a fat girl and you don't even know or care.
hee hee.