Seriously, though, I had been using improv as a fun way to flirt before I ever knew what improv was. I'd say some false thing (either totally ridiculous or just a little slanted), justify it, then support and heighten it with additional beats throughout the rest of the conversation. If it starts out as ridiculous the girl is in on the joke immediately, but if it starts out normal and becomes ridiculous, the joke is on her when she finally realizes you're making things up. Either way it's a lot of fun, and later when I started taking improv classes I realized I'd been practicing it for years already in a different form. I'm sure a lot of other people had the same experience.