Human being is a social species that actively doing interaction. The interactions which are done must make a relationship that will continue to undergo development. The purpose of tins research is to know how has the development of relations and the pattern of interaction such as what is this die people choice. Informants in this study consists of 4 of die 9 community member of Excollent Dance Cover that actively use Twitter in doing daily interactions. Phis study is based by the Social Penetration Theory which will explain how a relationship is formed that will change the intimacy a relationship. This study is using the methods of case studies with qualitative approach descriptive. Data collection techniques that is used arc direct observation and an interview. This research result indicates that relationships formed on 4 informants has passed through the appropriate steps with a model research. There is movement forward to finally make intimacy 4 relations of informants has been on stage intimate.