From a book named "50 topics of spoken english for interview"

1. Make a good first impression

  -- look professional, credible and courteos.

2. Show you've done research on the company

  -- find out as much as you can about the company information

3. Sell yourself to the company

 -- try to control the interview to your advantage, accentuating the benefits you have to offer

4. Avoid sounding self-congratulatory

 -- always seek  to praise others more than yourself

5. Show loyalty to previous employer or teachers and professors

 -- you need to highlight your previous boss

6. Talk about your strengths

 -- you need to make certain you know your strengths so that you can explain their relevance to the position you are      seeking.

7. Talk about your weakness

-- what is a weakness in one position may be a strength in anthor

8. Talk about your career history

-- you need to have some ides of where your careers will eventually take you.

9. Dress to impress

-- the aim here is not to be  too formal or too informal or even eccentric.

10. Project the right image

-- you more concerned about what you can do for the company than that what the company can do for you.