It has been observed that there is a mixed variety of people users are friends with on Facebook. Some are busy in sending game requests or posting random pictures, while others simply behave like mute spectators and observe your every move. There are others who simply post stuff like "I can't believe this" or "It's annoying" in the hopes that you will ask what exactly happened, but they never finish telling the story. Here are certain types of Facebook users. See and find out which category you and others you know belong to.
https://www.facebook.com/TechBasket