Greek life, Freshman Leadership Organizations, Teaching Assistant
Don't be afraid to try new things that interest you. I wish I had joined some of the things i thought about doing and didn't my first year. Freshman year is a great time to try new things and do activities that you never other wise thought you could. With that said, however, don't over book yourself. College can be overwhelming and classes can be more work then you thought, so leave time to study and relax, so you're not doing things every second.