If you like just cheering for your high school or jr. high team, maybe you should do competitive cheer as well. Competitive cheer is when you and your team make a routine and perform it in front of many other cheer teams. All of the competitive cheer teams are against each other trying to win first place and possibly their way to nationals.
If you decide that you would like to do competitive cheerleading, then you may want to make sure you are prepared with a list of things like..
A history of cheerleading so you will know what to do.
Tank tops and shorts so you dont get to hot.
A drink to stay hidrated.