In daily life, humans interact with each other by applying the civil language to build social harmony namely mutual understanding, objectivity, honesty, respect, and politeness in effective communication. The teacher plays an important role in providing a good model of civil discourse for their students in the classroom. This study examined the civil discourse of Indonesian teachers through their comments on face book. This is a qualitative research. The data was collected from teacher comments posted on the Indonesian Teachers Forum (FGI) group on Face book in a month. There were 300 teachers’ comments about Education which were analyzed through discourse analysis. This study reveals that negative civil discourse outperforms positive citizenship discourse. 58.33% of teachers perform negative civil discourse while 41.67% of teachers perform positive civil discourse. The most widely language characteristics of teacher civil discourse are constructive comments in positive civil discourse and subjective comments in negative civil discourse. The teacher must be a model to train students to communicate with positive civil discourse.

Keywords : Social Interaction, Social Media, Civil Discourse.