• DO arrive before the appointed time. This will give you a chance to relax.
• DO act polite but not over polite. "Yes Sir," "No Sir," and "Thank You" can appear to insincere if used too frequently.
• DO act confident but not over-confident.
• DO shake hands firmly and stand until offered a chair.
• DO thank the employer for the interviewing you.
• DON'T use the interviewer's first name unless asked.
• DON'T take anyone with you to the interview.
• DON'T smoke or chew gun, even if the interviewer does.
• DON'T tell a prospective employer about other companies that turned you down.
• DON'T apologize for lack of experience or training; stress your strong points instead, such as you ability to learn quickly, assume responsibility, etc.
• DON'T watch the clock.
• DON'T ask to use the company telephone.
• DON'T put anything on the interviewers desk.
• DON'T mention influential friends or acquaintances in the organization.
• DON'T try to be funny.
• DON'T make elaborate promises.
• DON'T plead for a job.
• DON'T hang around after the interview.
• DON'T forget: You are the winning candidate for the job!!!

via eduers