Do not go in thinking you will not be busy on festival days. There is a lot to do, pack sunscreen. Get to know everyone as well as you can and go above and beyond with the tasks you are given. This leads to more responsibility. Be honest and elaborate in what contributions you can make, but be aware you are mainly manual labor for no pay (other interns are compensated generously in alcohol, but if you don’t drink, there isn’t a substitute for you).