Body language tells a lot about someone’s inner life. For example when we lie, we tend to reveal ourselves through certain bodily behaviors, like scratching our neck or nose. Navarro goes into detail to explain how non-verbal communication such as facial expressions, gestures, touching, and even the tone, timbre, and volume of a person’s voice can predict human actions. Why would anyone that isn’t in the FBI need these specific body-reading skills? According the book, because “These skills will increase your ability to accurately assess moods, decode behaviors, anticipate problems, avoid hidden pitfalls, influence negotiations, and understand the secret motivations of those around you.” Good luck at the poker table.