There are several types of employment interviews. Being familiar with them can help you better prepare for your interview. The interviewer becomes more of an active listener.
Interviews can be stressful events.
Show your interest in the job you are seeking and in the business. Being yourself can help you relax during an interview and cut down on stress. Carry a completed generic application with you. This will enable you to provide information that may be required and to complete an application form if it was not done before the interview. If you haven't had a particular kind of experience, say so, but also indicate your willingness to learn new skills.