Striking a high-power pose in your interviewer's office could come off as offensive, presumptive, and rude, regardless of how it makes you feel, Cuddy says. Here's the alternative, which she calls "The Performer" in honor of Mick Jagger.
Before the interview, throw your hands in the air and widen your stance, as if you're soaking in the applause after an encore performance. Do it in the elevator or stairwell on your way up to the office, or in the bathroom before checking in with reception. Hold the pose for two minutes to set those hormonal changes in motion and give you the confidence you need to ace the interview.