Jeez.... The amount of analysis you guys are putting into this.
If you can't dance then you obviously need to go to a club where the music is better and causes you to dance. I never dance unless I like the music.
Pre-drinking is good in my opinion because it lowers inhibitions. I don't think it's bad to go out drunk every now and then to just let loose but you still have to be able to enjoy yourself sober.
When the music is too loud that's a perfect opportunity to talk into a girl's ear and kino. Also it's a good excuse to use if you want to extract and isolate a girl. You can also just communicate only through body-language (usually on the dancefloor), and do some flirtation. Eye-contact, winking, touching, ass squeezing, giving thumbs up, ass slapping, or just plain dancing, they're all good.
Listen, imo you can get as drunk as you want as long as you dont sacrifice your own dignity by overcomplimenting or pursuing an unattainable girl.
What happens to me when I go passed a certain drunkenness threshhold suddenly a lot of girls are much more attracted to me. I guess the main jist of what I'm saying is that if you don't like the music you should get more drunk. Of course you should take my advice at your own risk. It could backfire.
When you start a conversation, you can do anything you want. You can say "hi". You can ask where the girl's from, where her friends are, where she's from, what work she does, what she likes to drink, whatever.
The most important thing is not to take yourself too seriously. If a girl is interesting to you, then there's nothing wrong with expressing that interest. It's called the direct approach. If there's something you want to know about a girl: ask it.
If you can't think of a question to ask, you have to THINK HARDER and try to relate to them. Of course you have to stay within the masculine point of view, but you must show understanding for the feminine point of view. Even if it's in the form of satire.