Positive feedback is a process in which an initial change or event triggers further changes in the same direction. This can be seen in various systems, such as in biology, where the release of a hormone can stimulate more hormone production. In this way, positive feedback amplifies the effects of the original stimulus, leading to a greater outcome. In social contexts, positive feedback can occur when a person's actions receive praise or encouragement, motivating them to continue those behaviors. For example, when a student receives compliments for good work, they are likely to put in more effort in the future, reinforcing their positive behavior.