1. Research the company
    Know some facts about the company. Examples : Industry, previous revenue, last time they were interested the news.
  2. Research who you will be interviewing with
    If you don't know, ask. HR or the recruiter you're working with should be able to tell you this. Maybe you have something in common?
  3. Calm your nerves
    They chose to interview you for a reason. Have confidence in your skills!
  4. Dress the part
    Wear a suit and tie unless told differently. And unless the dress code is very very casual.
  5. Show up 10 minutes early
    Any earlier, or late, you're cutting into their schedule.