Power is your perception of your ability to affect the world around you. Whether this be through raw physical power, or large amounts of money, influence, expertise, intelligence, high social status and so forth. We look for clues of power in the person’s appearance, in others’ reaction to that person, but most of all in the person’s demeanor in their body language. . . . The MIT Media Lab was able to predict the outcome of negotiations, sales calls, and business plan pitches with 87% accuracy without listening to a single word of content, only by analyzing the voice fluctuation and the facial expression of the person pitching.