Famous means thats everyone knows you. We know a lot of famous peoples. For example Beyonce, she is very famous ,because everyone knows her. In every country peoples are listen her songs. Angelina Jolie, famous actress , everyone knows her too. In my opinion, people can't be famous in one moment. He/she most do something to be famous. Positive traits of it is that everyone knows you, but there negative traits too. Near celebrities you always can see security, because someone can attack them, try to cill them with envy.