Here's my advice (so you might want to just skip this and go to the next post). Like your running, have a plan. First, identify your list of potential candidates. Second, get to know them a little in a none-pursuit fashion - just friend-like (Oh my goodness, this could take a few weeks couldn't it (gasp)). Then, after getting to know them well enough, how 'bout throwing out a cheesy comment that speaks to her exquisite inner traits while also showing appreciation for (but not total focus on) her looks (authenticity/believableness is preferable). Opening yourself first to some vulnerability is a actually a strong/secure thing to do, and although it may not work every time, it works much more often than you might think (yes, even for you) and more effectively than most of the normal approaches.
Works best if you can somehow make it look as if you actually believe what you're saying. Just my .02, but I know I could never approach Catman status on how to "pick up chicks".
Ideally, you should do all of this sincerely with noble intentions, but we all know I'd just be kidding myself to consider a lot of you being able to do all that (smile).