Students from developing nations may have considerably different expectations about their professors than American students. For example, they may not think that you were hired as the result of a competitive process or that you are particularly qualified to teach. If they come from countries where nepotism or bribery is the norm, they might think that you are their professor because your uncle got you this job or that you are paying a kickback to the Dean that hired you. For this type of student, convincing them that you are in fact qualified to teach might be your first task. Something to keep in mind.