I started to carry chalk around with me. I ride my bike a lot, so, I’d ride my bike over to people’s houses and leave them messages in chalk on their sidewalk. I set up a couple of systems with people where, when they got home, they would put something in the window, like a stuffed dog, or put a pumpkin up on the ledge that meant ‘Hey, I’m here. Come talk.’ I started having fun trying to dream up different ways to get people’s attention.