The short list:
1. Think of it like personalizing your desk.
2. Look for old co-workers and current connections.
3. Add friends selectively.
4. Add apps selectively.
5. Edit your news feed preferences.
6. Edit your profile and security settings.
7. Incorporate the tools you’re already using into your profile.
8. Join Groups related to your business interests.
9. Limit time wasted on Facebook.
10. Be philanthropic.
11. Ask Questions.
12. Look for events.
(Taken from Stephen's Lighthouse)