What is the most important thing to do in an interview?

Most importantly be PREPARED, PREPARED, PREPARED; know the trends of the industry, the skills needed for the job, the salary ranges offered by competitors, and as much as possible about the company or organization. Then relax and be yourself. Keep eye contact, make an excellent first impression, engage in a dialogue– a two-way conversation, and say you would love to have the job at the end of the interview (if you do). Exit the interview the way you would like to be remembered. Distinguish yourself as a person not just one of the interviewees. Write a thank you note immediately