In terms of advice on answering questions, I like it when folks have clearly done their homework. Don’t tell me you visited our website, let me know by how you answer the question that you had to have visited the website(and other sites) and have done your homework.
There is a fine line on candor in answering questions. It does not work to your advantage to tell me that you hate doing x, y, or z because that may be part of the required tasks whether you like it or not. Let me know your learning style—if I am going to be your boss and have to teach you the job, let me know how you best take on information. Do you like it when your boss sets specific goals or are you self-directed and work closely with your boss to set your own goals?
The other few things I would like to offer as advice—take a big drink of water before you come into the interview. When people are nervous their tongues stick to the roof of their mouths and the interviewer can hear this. Bring a bottle of water with you and take a drink while I read you the question. If your hands are shaking, leave them in your lap where I can’t see them. Make direct eye contact when you answer the questions, don’t look off into space. If you are looking off, I am inclined to think you are making up an answer.
I totally agree with @cak that confidence is much better than arrogance!
Once I was asked what is my management style. I stopped and smiled and said, you know, I train dogs and I have learned that a similar style works for most people. Offer a great deal of praise and a quick and well-timed correction. Shape the behavior that you want to see and offer frequent rewards when someone is learning something new. I got the job!