Congrats! UF has been the most laidback interview experience for me. It really is conversational and the interviewers try to make you comfortable themselves, at least in my experience. I made it through the day with two Bang energy drinks (not sponsored lol).
I would suggest just looking over your primary, secondary apps really well (maybe skim them 1-2 times a few days before each day) and make some questions for your interviewers that you can't find on their website (maybe parking, clinical curriculum, etc). Be confident and smile! If you are interviewing, they really like you already. Congratulations again, you will do great! 🙂