Chances are you picked where you're going based on interest you already have in being there. Read about the city's and country's history, customs, food, tourism and language (have a look at our travel guides
for more info). Also, definitely ask your study abroad office to set up an informal gathering with current "inbound" exchange students. They can tell you anything you want to know about the differences in campus life there and abroad, how their home city is different, where to find the best food, their favorite bars and clubs at home, etc.