The present, we must agree to use the Social Network has become a daily of teenager. Whether, when they wake up, go to the bathroom, even while traveling and working.Then the Zocial inc has a survey of 655 people about the behaviour of using Social Network on a daily since they wake up to all day.The results of survey is Facebook 99%, Line 84% and Instagram 56% of 655 people.In addition, each applilication has different using such as Facebook use to update or follow the news, Line use to contact with their friends and Instagram use to share picture on their profile.These are 3 pupalar application that teenager use most.