This document discusses perception and the factors that influence it. It describes perception as the process of assigning meaning to information from our senses and the world around us. Perception occurs in three steps: sensory input, selective attention, and personal interpretation. Many factors shape our unique perceptions, including values, beliefs, culture, biases, and expectations. The document emphasizes that increasing self-awareness of how we perceive and checking our perceptions against others can lead to more accurate understanding.