The key to impress the interviewers is to be yourself. Calm, be confident and most importantly be yourself in showing what you are (what you are capable of? strength as well as balancing out with your weaknesses) Wear neat and professionally, that will do! Not ignoring that you must fully equipped with preparations on knowledge for that designated position you want to apply!

Then buckle up on your knowledge by reading up more business magazines related to the questions. If you can't understand, you should Google it and find out what's the meaning of it.