I also have a group interview at U of Vermont for their Masters in Clinical Mental Health Counseling program. This is what they have on their website: "The group interview is critical in the application process. Faculty will be looking for evidence of candidates’ self-awareness, awareness of social and cultural issues, ability to communicate with others, and interest and commitment to the profession of counseling." I know this might not be the same for all programs, but may help give you guys an idea of what to expect!