Here's a tip for quiet guys...I'm one of them actually, but I've learned firsthand how to make it an asset.
Being quiet in the dating game implies to chicks that there is more to you than meets the eye. If you demonstrate through shyness/introvert-like behavior during a convo with her, she's gonna flake realizing that there infact ISN'T much of interest under the quiet surface.
Therefore, you need to demonstrate that you are infact an interesting person. Just because you are introverted SOCIALLY, doesn't mean you should be introverted with your life.
1) First and foremost...make sure you ARE an interesting person. Get some hobbies, play a sport, take some random interest classes, learn afew neat skills(bartending, card tricks, etc etc).
2) I won't say the usual "learn afew jokes" thing. Whenever I do that, I always feel rehearsed and unnatural. And the jokes don't fit the situations as well. So, go to your bookstore and buy some funny books. Not necessarily a Jokes book, just books that are comedic in nature(blogs, stories, pictures, etc etc).
3) I can't stress this one enough...If anything really strange or interesting occurs in your life...WRITE IT DOWN! When u go home after something retardedly strange happens to you, jot it down in a notebook!! That way you'll always remember it, so if ur ever in a bonding convo with a chick, you'll be able to tell a story like "There was this one time..." etc etc etc.
4) If you are naturally a quiet person, you MUST be generally aware. If you are quiet and inept, you go straight to the bottom of the barrel. You have to understand what the hell is happening(social dynamics), so if you are ever on-the-spot, you don't look like a complete idiot. If you are quiet, then you must know WHAT to say and WHEN to say it. There is no way around this, it's the way it is. Essentially, Quality over Quantity. Alot of noisy people tend to just mash girls proverbial "buttons" to elicit the right response. Eventually they get it right. If you don't talk as much, you STILL have to be learning what are the correct buttons to push, without pushing them. So when you do speak, you know what "buttons" to push.
-----------------------------------
Good luck.