With more non-local (Mainland China and overseas) students admitted into the universities of Hong Kong, the student population on campus is becoming much more diversified. This study was a phenomenological inquiry into the social engagement experiences of local and non-local Chinese students in their first year at a university in Hong Kong. Qualitative data was obtained from 10 focus groups. The findings suggested that the majority of the students in the study were active in social engagement and most achieved a sense of belonging to the university or its sub-communities. The culture in student communities played an important role in students' social engagement. It pushed students to become intensively involved in out-of-class activities and challenged them to reflect on the direction in which they would carry this historical legacy forward in the diversifying campus.