Yep, starting off with zero clues on what you like is tough. But, there's no better way to find out what you like than to start trying stuff out.
Here's a quick guide:
1. Pick 3 areas of Interest.
2. Pick 1 opportunity from each.
3. ACTUALLY sign up for them. Really. Do it.
Of course, there are other ways to find out what you like. We'll be adding those soon!