Finding the right room in a shared apartment (WG-Zimmer) is not exactly easy. In university towns they are scarce and hotly sought-after. Often lots of people are interested in the room, and you have to be prepared to go through an "audition" for it. This is a kind of interview in which the other roommates try to find out who would fit in best. You should be prepared to answer questions about whether you're willing to clean, what your music tastes are, and what your daily routine is.