“Be yourself” is horrible advice for someone going on a job interview. That’s because you are literally auditioning for a new role. Take the time to craft your “job interview character” by making a list of the qualities a successful candidate should convey. And then rehearse. For example, if you tend to be shy, expand your range of expression (and what you’re comfortable doing) by practicing what might feel like an exaggerated performance, using hand gestures and passion. And try to reframe your perspective. Instead of performing as a person who is trying really hard to get the job, perform as someone who wants to have a great conversation with the interviewer. Ask open-ended questions and be prepared to tell stories.
Source: HBR