You finally got that call you have been waiting for - an interview for a new job. At first , you will probably feel overjoyed, but as the interview gets closer, you are likely to get more and more nervous about the big day. Experts say that you only have 30 seconds to make a good first impression at a job interview. The key to successful interview is to be prepared and stay professional at all times. To make sure you do your best, remember these ten tips.