The three biggest components to an interview for teaching at a university are knowledge and enthusiasm of the subject/discipline, experience and excitement about the place of work. If you already have a Masters Degree in the area you'll be teaching in, you're halfway there. That will take care of the knowledge portion. To demonstrate experience, I'd suggest preparing a 10 minute mini-lesson or lecture on a topic related to the discipline you're hoping to get hired in and be prepared to be asked to present an impromptu lecture. In the lecture, be sure to use plenty of engaging teaching techniques - open ended questions, video samples, examples of how the topic relates to real life work, etc. Also, be sure you know how to relate your area of educated expertise and passions to students. For the excitement about the place of work, I suggest that you come to an interview prepared with a list of three or four questions about the school or how the hiring manager got into his or her career field. Don't be afraid to learn ahead of time as much as you can about the school's mission and ask questions about it. Doing these things will certainly help you prepare for an interview.