This document discusses several perceptual processes that can influence how people perceive others. It describes implicit personality theory, where one's beliefs about personality can lead them to perceive qualities in others that conform to their theory, even if inaccurate. It also discusses self-fulfilling prophecy, where predicting a belief can cause that belief to become true if the prediction is acted upon. Additionally, it discusses primacy-recency effect, where initial impressions tend to have greater influence over perceptions than later impressions. Finally, it outlines risks of stereotyping, attribution biases, and other fixed perceptions that can ignore individual complexities and lead to inaccurate understandings of people.