Getting the attention of anti-social geeks

I was reading Tim Bray's blog today and he mentions that at OSCON this year there was a company booth which was capturing the attention of anti-social geeks in a novel way.

... they had a big screen sticking up showing a continuous loop of a screen capture of someone setting an app up for OAuth, with lots of JSON and JS and other config stuff going back and forth across the screen. A lot of your antisocial geeks who don’t actually want to interact with anyone remotely salesy were standing there watching this with educated attention.

This is a really interesting trick and I can count myself in that group of anti-social geeks often. I saw another company doing this at the O'Reilly Velocity conference earlier this year.