Not all schools grant interviews, don’t sweat it if you don’t get one. If you do get an interview, take it seriously. Admissions officers will consider it when evaluating your application, although they’ll be much more interested in your grades, test scores and essay.
Don’t over prepare what you’re going to say. Instead practice talking about yourself.
You don’t want to sound like you’re reading a script – relax and have a conversation.
Here are some links to articles and videos to help you prepare.