Introverted: The introverted person would be a quiet, reserved individual who directs their own interests toward themself rather than others. One who would generally keep to themself and not make many, if any, overt gestures to meet new people on their own, probably seeking an introduction from a mutual friend or acquaintance. This individual would probably not be a risk taker, especially in social situations and would not be very comfortable, for example, making cold calls in sales.
Extroverted: The extroverted person would be very social, gregarious, and outgoing; and would be very interested in taking the initiative to meet new people in business and social situations. This person will not keep much to themself in terms of what is on their mind and will enjoy being the center of attention. The extrovert's interests are centered outside of themself.