[kefeizhou]

Do you have any interests/hobbies outside of CS? There's probably clubs for every interest you can think of at your college. Even if you don't have any strong interests, just be open to try different things. Some people here suggested reddit, secondlife, and online gaming - you have the rest of your life for that but your college years will go by before you know it so really take advantage of what your school has to offer first. I was extremely introverted in college as well so i can definitely relate, happy to talk more, contact info is in my profile.