How do you prepare for an interview?

I will normally think of questions they might ask and try to answer them myself. I will also research the company and see how I can contribute. Take a good rest, wear my confidence, and I am ready. ;-)

You seem to do all the right things to prepare yourself for an interview. During my career I interviewed many candidates for jobs and the things you mentioned were exactly what I was looking for. Especially an updated resume and extra copies. As someone else mentioned, apart from the standard questions it depends a lot on the impression of the interviewer whether or not the candidate gets the job. First impressions are formed in a split second and remain in the memory of the interviewer, especially if many candidates have to be seen. You are doing all the right things. The only other points I might add is: walk in with confidence, smile and shake hands if offered. Make sure your shoes are shiny and don't wear oversize jewelry that distracts the interviewer. A tricky question is about salary expectation. If asked what you expect, ask what the going rate is for the industry and what they are prepared to offer. Don't ask about benefits, insurances and vacation in the first interview. A good interviewer is supposed to outline all of those. Anyway as I said, you are well prepared. Best of luck to you.