Remember that the interview is your chance to get the best job in the land. Arrive about 10-15 minutes early before the schedule. Use the time to relax, collect your thoughts, and gather your composure. Imagine yourself greeting the interviewer with a smile and answering his questions confidently. If the interviewer drops a difficult question, pause, and please don't panic. Give him the best answer that you can manage, minus the uhms, and the ahs.