The interview was way chill, so just relax and be yourself. They told us that the two doctors who interview will represent you before a committee so they are on your side. As for down time there was a little bit, about an hour after everyone got there. At that time people are being taken out one at a time for interviews. You meet in a small room so if everyone just does homework and doesn't talk it can feel a bit awckward. Later on you get a short tour by current dental students and can ask them questions. Some of the deans came down for an open question session as well, but they seemed kinda in a hurry. Anyway its a great school, enjoy.