Grow your hair out, take your shirt off wear a hippy looking necklace. Then when you get that taken care of strut around the Crag and have your friends within earshot of the ladies say something like "holy shit, is that Chris Sharma?!" They all know who he is but 9 out of 10 climber girls have no idea what he looks like. Lastly just sit around and meditate at the the base of a super hard route with your optimus primes in your lap. DO NOT actually climb, they'd figure it out.
First, as a single female climber who recently turned 30, I'm not super keen on trolling for men in the climbing community. That being said, if you're really interested in a lady climber, just go up to her and say 'Hi'. I find it impressive when a guy actually goes out of his way in front of other people to say hi to a woman he wants to get to know. Just keep your clothes on and act your sweet self.