This document discusses personality traits and theories. It explains that personality is influenced by both nature and nurture. There is no single gene that determines traits, rather it is a complex interplay of genes, environment, and experiences. It then describes trait theory and the Big Five model of personality - extroversion, agreeableness, conscientiousness, neuroticism, and openness to experience. Each trait is defined by positive and negative characteristics. Personality comprises traits, motives, thoughts, self-concept, and feelings, while traits refer specifically to consistent behaviors. The document provides examples and assigns a performance task roleplaying the five factor model, before listing additional personality assessments for further research.