>Dump her in a situation that operates on different social scripts than she's accustomed to, full of people talking about a subject she doesn't yet understand. Then tell her the community is hostile toward women and therefore doesn't have enough of them, all while showing her off like a prize poodle so you can feel good about recruiting a females
This explains, better than I ever could, why I've always felt weird about all of the attention on getting women into programming.
As a kid, I loved programming. When I became a teenager, I got wind that it wasn't something "cool" and got spooked. For someone as insecure as I was, having a hobby that I couldn't really "explain" to normal people was embarrassing. Probably if I had known a single other kid/girl that liked computers like I did, I might have continued on that path and not been distracted for about 10 years.