Social Networking has become very popular during the past few years, but it can still be very difficult to understand for someone new to social networking. The open-ended nature of social networks add to this. Once signed onto a social network, having answered a few basic profile questions, it is easy to sit back and wonder what you are supposed to do next.
The easiest way to understand social networking is to think of it like high school.You had friends in school, and you knew quite a few people even if you weren't friends with all of them, but it's likely that you didn't know everyone. If you ever moved to a new school -- or if you can imagine moving to a new school -- you start out with no friends. After attending classes, you start meeting people, and as you meet them, you begin associating with those that have similar interests.