I'm not sure about asking questions, but you can get a huge amount of information by looking around as your going to/from your interview. The bathrooms/toilets

I'm not sure about asking questions, but you can get a huge amount of information by looking around as your going to/from your interview. The bathrooms/toilets, kitchen, and break areas are all enlightening in their own way. For example: - How well are the bathrooms maintained (clean, working). - What kind of notices are posted in the halls, etc -- passive aggressive messages, or announcements of upcoming brownbags/hackdays.