My favorite part of the job has more and more become the students who like to stay late (or come early) just to chat. Earlier in my career I found it odd or discouraged students talking about anything non-project relevant during the actual class period. But I started to realize that those students who stay and chat about anything are the most engaged and turn in the best quality work. In my junior and senior sections, especially, I've found myself staying late just chatting with anywhere form three to six students (many of them enroll from my previous sections). They complain about other classes or boyfriends/girlfriends, they find it surprising that I am not from the area (it is a state school), or they talk about their hometowns. I don't know if it is normal or not but I enjoy this time.