Psychological traits are consistent patterns in an individual's thoughts, feelings, and behaviors. These traits help define a person's personality and can influence how they interact with others and respond to different situations. Common psychological traits include extraversion, agreeableness, conscientiousness, neuroticism, and openness to experience, often measured using tools like the Big Five Personality Test. These traits can be shaped by various factors, including genetics, environment, and life experiences. Understanding psychological traits can aid in personal development, improve relationships, and enhance mental health by providing insights into one's behavior and motivations.