Expression speaks more than words.

Non-verbal communication speaks more than verbal
As we are talking about communication then we should keep in mind that communication is not only what we speak. Non-verbal communication is also a powerful form of communication in which their is no space for words but gesture and jesture speaks more than words. Especially when we appear in front of someone for any specific purpose or beacuse of some motive to impress them. The first thing people do while talking to someone for the very first time is to notice them from head to toe.

Every day we respond to thousands of nonverbal cues and behaviours, including postures, facial expressions, eye gaze, gestures, and tone of voice. From our handshakes to our hairstyles, nonverbal details reveal who we are and impact how we relate to other people.

Their are various types of non-verbal communication like facial expression, gesture, body language, posture and eye gaze. For example facial expression shows alot more than what you speak like your anger, happiness, sadness, fear these all are facial expressions which conveys alot more than you speak about your mood.

Like if a person is constantly talking to another person about his happiness how good his life is going on but that happiness is not reflecting on his face than the person who is talking to him can easily judge is state of mind that is non verbal communication.