I like the above posts, especially the point about not getting insecure and asking about it. Whether she's just playing or she's actually thinking you're a freak, another option is to own up and sell/justify it: "Weird? Nah. Different? Hell yeah, and proud of it!" I always loved this interview with Andre 3000, who happens to be a pretty weird cat and a cool dude because of it. He mentioned that his mother used to always bust his balls when he'd get embarassed by classmates or when he'd try to conform: "Why do you want to be just another n****r?". Sometimes I actually use a similar anecdote to the Andre 3000 thing, and it tends to work pretty well because it suggests you're an individual who actually puts thought into what you're into instead of just doing what others think is cool. Being a follower is NOT alpha...
Also, throwing it back at her in the form of a mild neg tends to work nicely: "Oh yeah, and you are TOTALLY normal? There's NOTHING about you that's a little weird? Right...." This gives her a chance to open up and say something about herself (unless she's so damn scared of you that she's just closing her eyes praying you'll go away). Once she does that, and if you can read that you've disarmed her a bit, you've got a good opening to build rapport with something like "Wow... We're a couple of freaks!" followed by some kind of kino (chummy arm around the shoulder, fist pound, etc.).
There's a good expression to describe people who aren't weird in any way: FUCKING BORING. Some of the most serious players are "weird", so I say embrace it man. As you can probably tell, I'm a little "eccentric", so I've dealt with this before
