First of all, it is a very laid back interview. 2nd, make sure you TELL them that UofL is your first choice. I was doing early admission to UofL and the atmosphere of my interview changed completely when they knew that I wanted to go there. Part of the interview process is trying to recruit you to the school, letting you know what they can do for you.
If you tell them that you want to go there, they will spend much less time talking about the school and more time finding out why you should be accepted.
Worked for me 😛