Exerting pressure (on someone or something) is a common way to influence a situation. It involves applying force or influence in order to achieve a desired outcome. The term 'LEAN' is often used to describe this type of pressure, as it implies a steady and consistent application of pressure. This can be done through physical means, such as pushing or pulling, or through psychological means, such as persuasion or intimidation. In either case, the goal is to get the other person or thing to do what you want them to do.