[jesstwnpr]

Being prepared is the key to managing your nerves. So I agree that practicing is very very very important. Even if only do it with yourself.

I like to do as much research as I can about the company (usually online) so I can go in feeling like I know a little more about where the interviewer is coming from and what they are looking for. I often make a list of questions I think they'll ask and then practice my answers.

Whatever you do, don't feel rushed during the interview. If you feel like you're thrown off-guard by a question, the worst thing to do is just open your mouth and start jabbering while you figure out what to say. There is nothing wrong with a few seconds pause while you gather your thoughts. This will help your answers sound much more organized and professional.