I've been thinking, and theres couple things to get fans off of there feet and cheer a little more.
During t.v timeouts, its always silent waiting for the game to begin again. Why not have a 'Fan Cam' like all pistons and all other teams that do this. It will get some fans involved into the atmosphere and bring noise (when there on t.v, people tend to cheer).
Also, have the cheerleaders or students go around the stadium shooting up michigan t-shirts to the people who are the loudest. Or give away free pizzas around the stadium to the fans who are the loudest.
When we played music before the game, I seen alot of people dancing and having a good time in the stands. Which brings them to be more outgoing and louder durin the game(spring game).
Beaver stadium gets loud because they have music before game and it gets fans into the game atmosphere. I believe adding all of these little things would be fun and even fun for the kids.