Openness - How much someone tends to like novelty, ideas, imagination, aesthetics, curiosity, and unusual experiences. High: curious, imaginative, creative, open to change Low: practical, routine-oriented, conventional, prefers familiar things Conscientiousness - How organized, responsible, careful, and goal-directed someone tends to be. High: disciplined, reliable, planful, detail-oriented Low: spontaneous, flexible, less structured, may procrastinate Extraversion - How socially energetic and outwardly expressive someone tends to be. High: talkative, energetic, assertive, enjoys groups Low: quiet, reserved, enjoys solitude or smaller interactions Agreeableness - How cooperative, trusting, considerate, and harmony-oriented someone tends to be. High: kind, empathetic, forgiving, cooperative Low: blunt, skeptical, competitive, more conflict-tolerant Neuroticism - How emotionally reactive or stress-sensitive someone tends to be. High: anxious, sensitive to stress, emotionally volatile Low: calm, emotionally stable, less easily worried KiSS-18 Basic Skill is different from Big Five. KiSS-18 stands for Kikuchi’s Scale of Social Skills: 18 items. It measures practical social/communication skill, especially basic interpersonal behavior. KiSS18_BasicSkill means something like: - ability to handle everyday social interactions smoothly High: starts/maintains conversations well, responds appropriately, manages interpersonal situations Low: may struggle with conversational timing, expressing oneself, or navigating social situations