For the majority of candidates, the job interview is the most difficult portion of the hiring process. You’re under the gun to make a strong impression. And research we’ve conducted shows that you don’t have a lot of time to do so. Sixty percent hiring managers form an opinion of job seekers in 10 minutes or less. Almost one in five (18 percent) do it in half that time. With that in mind, here are six interview tips for the next time you’re across the desk from a potential employer — and six people who are doing it wrong, according to managers we’ve surveyed.