I have an interview coming up on Monday. I was told to do some station visits before my interview. I have a few concerns. I always feel out of place when I do station visits. One: I never know what to ask. Most of the information about the particular department is online. Two: I feel strange being in someone else's house with 8 people, I look up to and aspire to be, all judging me. Of course I would like to make a great impression and I don't want to be unprepared for a simple station visit. Any particular questions I should ask? Any help would be appreciated.

Thanks