Let's face it, employers can get downright weird sometimes when it comes to their interview questions. Prepare ahead of time and research potential interview questions online and figure out how you would answer them.
Also, many employers will ask you if you have any questions at the end of the interview. Research the school ahead of time and have a question or two ready to ask. Asking questions shows interest.
Doing the little things well during a job interview can be the difference between you getting the job or not. Do these two simple things and you will already have an advantage over most of the competition.