Kids usually flock to us at our school.
At the beginning of the school year, our school holds a kind of after school "club fest", where all the clubs hold booths to advertise to the new freshman, and returning students. We're usually the guys in Hawaiian shirts in the middle of our 'commons' with one of our robots out. Our coach puts out a laptop with a sign up excel sheet, and at the end of the day, we'll see a list of more than 50 kids who want to in on the fun.
The demos help a lot. Kids get to see what they're getting into, and they usually find getting pelted with poof balls (06), or lunacy balls (09) very fun
.