Thats Student Life - a Christian group on campus. Basically they interview you on various things to do with, you guessed it - Jesus!! This time of the year they will ask you about Easter, and what happened on Good Friday and all that jazz.
For answering their questions, and filling out a form with your name, address and number on it, they give you a chuppa chup. Then, they replay the videos in the comfort of their own cult meeting and cheer if you answer the questions correctly. If not, be expecting several thousand phonecalls from them trying to convert you.
I'm surprised you've only just realised their existance in 3rd week. They are as much apart of MQ as sleeping students are in the library
In all honesty though, most of them seem pretty decent.... but there are the bible-basher types that wont ever let you escape. My advice is to ignore them, and spend $1 of your own on a chuppa chup