Non-verbal communication is an ever-present and extremely important aspect of everyday communication that can give a good insight into human thinking. It includes body language, facial expressions, touch and other non-verbal signals that help in connecting with others, understanding and conveying emotions, however it can also contain negative aspects such as manipulation, sending wrong signals and misunderstandings. In order to avoid this, it is necessary to accurately and carefully interpret all aspects of non-verbal communication because each one provides a piece of information that, when put together, gives an overall message that allows for a deeper connection and understanding of the person. If one of the signals is misunderstood, the relationship and communication can be destroyed. In the center of this paper is non-verbal communication in various interpersonal relationships and its influence and emotional significance in the same is evaluated. Although some elements of non-verbal communication are universal, most of them can be difficult to understand because it depends on the culture, the person and the relationship. Every relationship is different, whether it is family, business, love... and each has its own set of rules of behavior and "proper" communication. The work goes through important stages of life and advice on how to be a better parent, communicator and partner, and establishes the importance of non-verbal communication in everyday life. In addition, they will discover what the eyes, posture, handshake and personal space say about a person and how they affect interpersonal relationships.