Upenn interview's coming up

[dent_girl]

my interview is about a week and a half. well. I've been a lazy ass
since I applied so felt the need of preping for this interview
so I read one feedback from this year and the interviewee said
it was tough! i started getting a little worried b/c in general, the
people who interviewed last year said the interview was pretty
laid back and not too bad. maybe they are trying to be tough this year?
any tips from people who did interview at penn?
or people who had their interviews already have any tips on
doing well?