When attending interviews make sure you know
Full name & address of company
Company's Telephone number
Correct time of Interview
How to get there
The name of your interviewers and their positions
Make sure you know your CV inside out
Be able to describe your present job
Your daily duties
Any achievements in your career?
Your strengths and weaknesses
Where do you see yourself in 2-3 yrs?
Why are you leaving your job?
The Job you are applying for
Make sure you know the job title
Duties & Responsibilities
What the company does
Size of company or department
Questions to ask at interview
Why has the position become available?
What are the initial responsibilities?
What are the prospects like?
When will they make a decision on the position?
What is the dress code?
Finally Always Remember
It is you seeking the job and not the company?
Your reasons for changing jobs must be valid?
Try to match your character and personality with the company?
Always come across enthusiastic and positive about the job?
Lastly if you really want the job don't be afraid to say it?