I usually have the students introduce themselves on the first day of class. I feel it is important to develop a sense of community in the classroom and it allows me to get an idea of their career goals and experience. I tend to ask them near the end of the term how their goals or expectations have changed after studying the subject in depth. This can actively guide me in my teaching presentation, or allow me to give individual attention to those in need. I am interested in how other instructors deal with this topic.