Extraversion: Extraversion is a personality trait characterized by an individual's tendency to seek stimulation from the external environment. Highly extraverted individuals typically display high levels of sociability.
Introversion: Introversion is a personality trait characterized by an individual's preference for internal thoughts and feelings over external stimuli. Highly introverted individuals tend to have lower levels of sociability.
Shyness: Shyness refers to feelings of apprehension or discomfort in social situations. While it may affect an individual's level of sociability, it is distinct from extraversion/introversion as shyness can be present in both types.