Make sure that you’re conducting your research ethically. For instance, at the university level, you’ll need to consult with the Institutional Review Board before getting your study underway.
Make sure that you understand your target group. Are you trying to conduct research on the group, or from within the group? Your questions will ultimately depend on your role as a researcher. Try to think about your survey from different perspectives, too. Are they technology, time, or socio-economic barriers that could interfere with your potential results?