Personality development refers to how a person's unique patterns of thought, feeling and behavior emerge over time. There are five key dimensions of personality: openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. Developing one's personality provides several benefits including increased confidence, credibility when interacting with others, and the ability to make a strong first impression within 7 seconds through body language and a firm handshake. Personality development also enhances leadership, communication skills, and curiosity.