The main pointer I have for you is not mechanically, but the way you look at the level. For one it does not matter how low the level the college game is, the coaches and players take their participation in this very seriously. A coach is coaching for his or her job unlike a high school game, which might have coach that also has a teaching job, but coaching is really the main thing these guys/gals do. They lose, they lose their jobs. This is important because your game management skills have to be much better an the questions they ask are often more intelligent. You have to be more patient and more communicative in most cases. All of this while there are hardly anyone in the stands.
Peace