Summer Programs Help

Hello Everyone,
I have consulted with many people around me and they have told me that looking at my 4 year schedule they do not have a sense of what I may major in in the future. This summer I will be attending a Debate Camp, but I want to become a Business lawyer. What can I do to show colleges that I am passionate about Law and Business? What would be rigorous summer programs or things I can do to have a fulfilling summer?
-Thanks