Need advice!

I am a recent graduate who, after submitting application to over 30 places, finally had the first interview. It's a retirement community and I had my first interview with the Executive Director who asked me general questions like when I will be available, if I'm willing to work overtime, etc. Then I had the formal interview with the Director yesterday. After the interview they told me that I am a strong candidate and the Executive Director even told me that she has a great confidence in me! They want me to shadow another nurse tomorrow to ensure that it's a setting I would like to work at and also if I am a good match for the community. I think this will be the last phase of the hiring process and I really want to ace it. I am trying to refresh the basic knowledge I learned from nursing school because I want to be prepared before I go in. This facility is a really nice place and I really don't want to miss this opportunity but I am sure there are other candidates who feel the same way as me. I want to make sure that I do an excellent job tomorrow. If anyone could tell me what they might be possibly looking for, I would really appreciate it. Any advice would help. Thanks!