On my campus very few international students rushed GLOs. (Although, students involved in greek life on my campus was under 10% of the entire student body, so it reflected the entire campus I think).
During my tenure with my chapter we had 2 international students; 1 was from Africa (if I remember correctly Mozambique
), although she had also spent loads of time in the UK. The other was from the Bahamas (I forget which island).
Like most international students I interacted with (greek or not), they were interested in emerging themselves in American culture. But at the same time, were very open about sharing their own cultures (religion, customs, etc.) They actually got our chapter pretty involved with the "World Week" events on our campus every spring that celebrate world cultures. So it was a
positive learning experience on both sides.