Can We Become A Community?

Last Friday the Ambassador group hosted the "Waukee Carnival".  There was dancing, games, food, and fun.

Towards the end of the event @CoreyStJohn (who was co-DJing) said, "This is great, we should do this more often!"
I said, "There's only 50 people here out of the 750 in the school, we can't afford to do this often."
"The people that are here are having fun, that's a good thing"
"True"
"We should have these for all sporting events; basketball, football, baseball.  Then we could come up with a school chant that everyone would learn on orientation night, then we could all walk to the gym or field chanting.  Wouldn't that be cool to get 400 middle school students chanting at one football game?"

That would be cool, but how do we turn an attendance of 50 to 400+ students?  How do we become a community?