If you got the posse scholarship, how/what did you do to stand out from other canidates?

Hello, i am a posse finalist for Sewanee: the university of the south and if you have gotten a posse scholarship either to this school or just in general, i would like to know what were some tips or answers to stand out from other candidates. My final interview is in November 29 and so far i have contacted the administration assistant and we schedule an interview on November 4 because i have a lot of question to ask him about the university. I will be competing with 28 other students and i wonder how can they possibly chose 10 students from 28 students regardless of their common app. So far, i have been preparing by researching more about the school and doing mock interviews.