The Johari window is a technique that helps people better understand their relationship with themselves and others.
In the exercise, someone picks a number of adjectives from a list, choosing ones they feel describe their own personality. The subject's peers then get the same list, and each picks an equal number of adjectives that describe the subject. These adjectives are then inserted into a two-by-two grid of four cells
See Wikipedia : https://en.wikipedia.org/wiki/Johari_window
Let others know Unconscious needs
It is used mainly in training to increase the quality of communication within a team.
Its use in training / seminar proves to be a structural mark, providing self-knowledge and knowledge of what others see and know about us.