10 Common Job Interview Mistakes: When it comes to job interviews, there are a number of common mistakes that can seriously hinder your chances of landing the job. Arriving late or too early, dressing inappropriately, failing to research the company and the position, being unable to articulate your skills and experience, talking too much or not enough, failing to ask thoughtful questions, badmouthing previous employers or colleagues, forgetting to follow up with a thank-you email, lying or exagg