Ethnograpy: Peer Teacher Study

I plan on doing an ethnography to study the differences between students and how they interact with the TA's and the peer teachers in lab.  I am entering my third semester as a peer teacher here at A&M in the Computer Science department.  In the previous two semesters and already in this semester I have noticed a great deal of differences in students and their interactions with me and other peer teachers.

The point of doing this is to improve the peer teacher program.  Arguably one of the better programs in the lab's, the peer teaching program depends greatly on the peer teachers themselves.  At the conclusion of the study we should have some concrete suggestions for peer teachers to better aid the students. 

To do this I plan on interacting with the students in modified and measurable manners.  For example are students more apt to ask questions if I am sitting at a computer or walking around?  Is there a difference in class year, gender, major?  These are some of the questions I plan to try to answer.  I would like to run tests such as for 10 minutes I would sit at the desk and count the questions received, and then for 10 minutes I would walk around and count the questions recieved.  One would expect more questions to be asked when I am walking around but are they from the same people as when I am sitting down?

These controlled interactions with the students should allow me to get a better gauge as to who asks what types of questions.