-Check out SDN interview feedback
-Research the school in every way on their website
-Have at least 7-10 questions ready to show interest.
-Rehearse answers with a friend or another pre-dent, but don't be too scripted. Write down a few ways you can take something so you don't sound wooden. Try using bullet points instead of writing a speech.
-Read up on the rules of how to dress, how to shake hands, how to button your suit, etc.
-Make up an attache of things you need to bring. Maybe some of your question answers, a resume, and any papers the school wants you to bring.
-Relax beforehand!! Don't stay up until 3am the night before to prepare. Just take it easy and be confident.