Teachers in a multicultural classroom could have many "untraditional" experiences in the classroom. One must consider that a multicultural classroom will boast different cultures, ethnicities, religious backgrounds, and societal behaviors.
A teacher can experience some of the following things in a multicultural classroom:
-Students who will not look the teacher in the eye (East Asian and Nigerian)
-Differences in personal space (Middle Easterners and South Americans stand very close when talking)
-Students who will not speak to others of the opposite sex (Islamic)
-Greetings can be different (kissing, hugs, hand shakes)
-Speaking directly (some cultures do not "sugar-coat" things)
Other things which a teacher may experience is uncertainty between students (although the goal is to teach acceptance). Given the vast differences between students (in some classrooms), teachers may experience apprehension between students given the cultural differences they see in each other.