Body language (Kinesics) is a remarkable means of communication that tells our environment a great deal about ourselves. But how to interpret the signs of this nonverbal behaviour? Arms or legs are crossed, backs hunched or extremities sprawled, hands rest upon hips, hair is twirled around fingers or clothes are being preened (imaginary lint brushed off) awkwardly. What do those signals and postures, that largely depend on an individual’s emotional state, express? Or give away…? In her talk, social psychologist Amy Cuddy explains the implications of power posing – how standing in a posture of confidence, even when we are feeling small – can affect testosterone and cortisol levels in the brain. Body language not only affects other people’s perceptions about us. It may even influence our body chemistry and change our own view upon ourselves. Amy Cuddy’s Talk was viewed by more than 18 million people.