Some colleges have a summer camp, and others are willing to conduct other events that can host a "look see" at what you have to bring to the table.
Now if we're talking UCLA... I'd bet you even money that the competition for a spot on that roster is going to be a squeaker... for everybody.
On the other hand if your talking about Small Town U... now you have a greater degree of flexibility.
But before we get into that stuff.. what did you have in mind as a major? In other words.. what do you want to be when you grow up. And do you think that college will give you the tools to do so?