Abroad universities are much less focused on grades. They care more about learning to increase understanding and knowledge. Therefore, you can expect much more of a lecture format to your classes and not much (if any) class discussion or participation. You can also expect to have less one-on-one interaction with your professors. (Professors at your abroad university may not even be required to hold weekly office hours.) However, the flexibility of curriculums abroad often gives students at abroad universities more freedom to explore their own interests within a course than would be allowed or even feasible in the U.S.