Our behavior is shaped by our attitudes and perceptions. Attitudes refer to one's mood or stance and are formed by a cognitive assessment, emotional reaction, and past behaviors. Perception is the process of understanding sensory information and forming mental representations. How we perceive people and situations affects our behavior towards them. Our perceptions are based on individual differences and can be reinforced through discussion with others, leading us to avoid things or people we perceive negatively, even if our perception is incorrect. Attitudes that result from experience and expertise can strongly influence our behavior.