Any job that has a responsibility attached to it has several qualifications that should be held by a person that applies for the said profile. Speak with a few friends, and compile a list of your qualifications and positive attributes. See which relate to the job. List them, with a quick real-life example of that trait in action.

Make sure that you carry your academic as well as other documents that support your application for the said position. Of course, not every interviewer will have the time to go through your documents, but the very fact that you have brought them would give you some extra leverage in obtaining the job offer.