Need Advice, new grad, what questions to ask?

I had 2 interviews for a position on a cardiac surgery floor. I asked a lot of the general questions during my interview such as orientation period, unit ratios, etc. Now I am going to the floor to shadow for 2 hours to see if it is a "fit " for me. The dept. director said to make sure to ask a lot of questions while shadowing. Can anyone give me suggestions of questions to make sure to ask so that I can get a good feel of the unit and the hospital? The hospital is out of state, and it sounds like I might have an offer if I like the unit. Need advice! Thanks!