A few weeks before your interview do some role playing. Enlist the aid of a trusted friend or family member to play the part of the interviewer. Dress in your 'interview outfit'. Do the role playing in a setting similar to what you might expect for the interview, such as an office or a table in Starbucks. The old adage 'practice makes perfect' applies. You will be amazed at the imperfections and glitches which a little role playing will smoke out.
2. Prepare a clear, concise resume.
A poorly prepared resume can confuse and mislead the interviewer. Again, enlist the eyes and opinion of a trusted friend to review your resume for clarity and conciseness. Think of your resume as a mirror on you. Make sure it reflects a superb image. Always print a resume in a standard business font such as Arial using black ink on white paper. Make sure there are no typos.