Improv on TED Talks

I found this video on TED Talks (which is also a great treasure trove of ideas on many topics other than music).

In it, a girl takes a handful of cards with notes written on them, has an audience member randomly choose some, and then improvises a piano piece based on those notes as a theme. It's a neat trick and kind of cocky too, cocky in a good way - in the sense that she is so secure in her ability to improvise that she's not afraid of anything thrown at her, even in a setting when she's going to be nervous.

I'm going to try this the next time I practice.