Try not to go off on tangents. Keep your focus on your best qualities.
Research the market, directors, and their history.
Don't speak negatively of former coworkers, employers or colleagues.
Breath deeply, relax your face muscles, take the time to pause before going in.
Make good, first impressions - be polite with everyone you meet. Offer a firm handshake.
Ask insightful questions to show you are interested and have done your research.
Remember the importance of body language such as eye contact, posture, active listening and nodding.
Job Hunting Tips:
"Before you begin to apply be sure to find out as much as you can about your prospective employer. Understand what it is that they do, who their market is, their competition, and things that they feel are important. An employer isn’t going to give much credit to what you can do for them if you don’t know what they do."