The courses are so many, so you have to do a list in before and check out your interests, then after the first or second week (but not later!) decide what you are going to do that term. My interaction with other international students was so bad because history is a subject mostly German students study. I saw only five (from a few thousand overall students) international students at the Institute of History. If you want to get in touch with students at all, do not go at too many lectures. You get to know students if you go to seminars and have to cooperate with them.
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