I have the choice to try out any career for a day in LA- What should I do? (Or what would you do?)

My Junior class is having a program called career day, where they match us up with someone in the city that does a certain job, and we get to follow them around for a day. We can basically choose anything- What should I do?

Some friends are doing nascar driver, music producer, etc. What would be a really cool job to do for a day?