Body language is a powerful form of non-verbal communication that can convey 93% of our messages. There are seven main types of body language cues: posture, facial expressions, clothing, gestures, eye contact, voice tone, and personal space. Positive body language like upright posture, confident handshakes, and steady eye contact signal confidence and security, while negative cues like fidgeting, avoiding eye contact, and fake smiles indicate insecurity or dishonesty. Eye contact, tone of voice, arm and leg positioning, and other behaviors can also help reveal if someone may be lying or feeling uncomfortable.