My interview at Tepper (on campus, with James Frick) was really comfortable. James was incredibly friendly and really good at being positive and complimentary while also remaining fairly conversational. It was my first B-school interview, so I was pretty nervous.
Mostly, he asked the standard questions: Walk me through your resume, why an MBA, why Tepper, why now, short and long term career goals. Some of the other questions he asked me (paraphrasing, as it's been a while): What leadership qualities are most important? What's your biggest weakness? How do you handle stress? What's your leadership style? What do you do for fun?
Check out the list of questions on
accepted.com's interview database, as they were right on. I wasn't asked a single question that wasn't on the list I compiled from that site.
I got in with a full ride scholarship, and in retrospect, I think there are a few reasons. Beyond stats and work experience and such, I think I showed a real passion for the school. I attached a class visit, tour, and lunch with my interview, and did those just before the interview itself. It gave me time to see the school, talk to a lot of students (I grilled our tour guide), and really get myself extra excited about the school prior to the interview. By the time lunch finished and my interview rolled around, I had already talked to one student about helping him out on a business idea he had that involved my current industry, which made for a great conversational anecdote in the interview. I definitely recommend doing a class visit and lunch beforehand if you can. When the interviewer asked why Tepper, I had both broad answers (e.g., their managerial science approach to business) as well as specific (e.g., the 8-week exchange program with WHU in Germany, and how that fit some of my specific interests and goals).
In addition, I have the benefit of a friend who went to Tepper undergrad and who lives in Pittsburgh. The night prior to my interview, he took me around the town and showed me the neighborhoods where most students live. That allowed me to talk with my interviewer about Pittsburgh itself, and talk with some amount of familiarity (he seemed impressed that I knew the names of the neighborhoods where I'd be most likely to live). In restrospect, I think my really detailed knowledge of the program and city really helped me to stand out.
Also, as I'm sure you know, Tepper prides itself very much on it's collaborative environment and friendly students. Definitely keep that in mind when you answer questions about leadership, how you'll contribute, and so on--they are definitely looking for those qualities in the interview.
Hope that's helpful! Good luck!