I want to be quiet.

Sometimes I felt that I talked too much. I just want to stay quiet for a while. But if I stay quiet, my friends will think that I am in bad mood. No, I am not. I just want to be alone, and think my own things. Maybe most of people think that a talktive person will be an easy-going person, however, if someone talks too much in the wrong occasion, he/ she will not be a nice person, isn't it? And all I want to do now is stay away from my friends, have a cup of hot coffee, and be quiet....