I have a deaf student in my class who requires interpreters. they do a fairly good job of relaying highly scientific lectures. However, we have a hard time getting the student involved in class. He is naturally very shy, but also his disability puts up a barrier between him and the other students. He would much rather have private conversations with his interpreters than communicate with other students. We've talked to the interpreters about not having side conversations, but the student is still reluctant to join the class. How can we get him more involved without forcing him into a situation that he is not comfortable with?