A demanding person is someone who has high expectations and often requires a lot from others. They may seek perfection in tasks and can be challenging to please. This behavior can occur in various settings, such as at work, in relationships, or during group activities. Such individuals may express dissatisfaction if their standards are not met, which can lead to stress for those around them. While their drive for excellence can sometimes motivate others, it can also create tension and feelings of inadequacy among peers or team members, impacting overall morale and collaboration.