Body language helps in everyday life from closing a business deal or trusting someone with your life, to recognising when someone is upset. Body language is the art of making an educated guess at a person’s feelings or intentions based on their posture, movement and positioning. To understand a person’s body language you need to take into account more than one aspect of their body language. Take tears for example. Just seeing tears on a person’s face does not tell you much as they could mean a person is happy, sad or just they might just have watery eyes.