Hello!
The personal interview is very relaxed. They just ask you the basic questions of why pharmacy, why Roosevelt, what do you like to do for fun? The basic stuff. The group activity, depends on how many students are there for the interview, but it get's split in half. There is someone there watching as you solve the question that is given to you. And make sure to speak up when being asked why your group chose that answer, like what method did you use. It's not pharmacy related, just using common sense, so don't worry. You will also be asked what to do if someone in your group refuses to participate.
Hope that helps and good luck!