Running late not only suggests poor time management skills, but shows a lack of respect for the company, the position, and even your interviewer. Go the extra length to make sure that you aren't late, and arrive on time, or even early. Budget your time so that you make it to the interview five to ten minutes early. 

When you interview for a job, it's imperative to look professional and polished.  Although your attire may vary based on the position you're applying for it's important to look well-dressed and put together, no matter what the company.

Before you get to your interview, silence your phone. Texting during your interview is not only rude and disruptive, but it's a pretty clear message to your potential employer that getting the job is not your top priority. For the same reasons, don't answer calls  during the interview. 

Don't let your potential employer stump you with the question, "What do you know about this company?" It's one of the easiest questions to ace, if only you do some research before your interview. Background information including company history, locations, 

divisions and a mission statement are available in an "About Us" section on most company websites.

There is nothing much worse than interviewing someone who goes on and on.  The interviewer really doesn't need to know your whole life story. Keep your answers succinct, to-the-point and focused and don't ramble—simply answer the question.

Don't let yourself zone out during an interview. Getting distracted and missing a question looks bad on your part.  If you zone out, your potential employer will wonder how you will be able to stay focused during a day on the job, if you can't even focus during one interview.

Be prepared with a list of questions to ask the employer so you're ready when you asked if you have questions for the interviewer.  Review questions you should not ask during a job interview and the worst interview answers that you should avoid at all costs.

Don't make the mistake of badmouthing your boss or coworkers. It's sometimes a smaller world than you think and you don't know who your interviewer might know, including that boss who you think is an idiot.  You also don't want the interviewer to think that you might speak that 

way about his or her company if you leave on terms that aren't the best.