One of the best ways to get informal interaction with students is by attending some of the many student directed events including theatrical performances, movies, community service activities, and dances. For listing see Tech Calendar. There are various places to work or socialize. Consider reading, writing, etc. In one of the libraries, a department lounge, the Student Center, or in a residence hall.
Informal interaction requires faculty presence in common spaces.
Every year, several groups of students spend their spring break participating in community service activities across the country. Trips are encouraged to have faculty advisors. Every residence hall has a live-in faculty House Master, and in some cases an Associate House Master. There is a wide range of student activities on campus, and faculty are welcome to join. Everything from chess to ballroom dancing and from outdoor activities to volunteering are available.