Overall, I was nervous going in because I didn't want to come off sounding like I had already prepared my answers since I saw many of them on this board beforehand. Luckily, they were phrased slightly different, and when it came right down to it, these questions are mostly answered by gut reaction. The purpose of this interview is to see if you are a good fit for Mayo, and I think the questions are pretty good at addressing concrete values. I'm not sure there's really a better way to prepare than to simply be yourself.