Since 1995 and until it apparently eased with the coming of Prime Minister Abiy Ahmed, ethnicity has become the dogmatic principle of the country for its social and political policies. Consequently, it has permeated through university campuses and affected relationships among students belonging to different ethnic groups. This study makes a micro-sociological ethnographic description and analysis of different "sites" of student interactions in curricular activities such as in classroom learning, extracurricular activities such as sporting, and service deliveries such as common residential compounds and dining halls at Addis Ababa University's Main Campus.