Go up to her and say one of these lines:
- Do you like whales? Coz I've got a humpback at my place.
- Beauty is only a light-switch away...
- *drop ice cube on ground* Now that I've broken the ice, how you doin?
- I'm a guy, you're a girl, let's hook up.
- You're hot. Let's bang.
- *drool* Gahh... Oooohhhhhh.... *drool* (drooling on her is optional)
- I like your dress, it'd look better on my bedroom floor.
- Nice shirt, let's bang.
They've done studies... 95% of the time those lines work all the time.