According to Carl Jung, introversion and extroversion refer to the direction of psychic energy. If a person’s psychic energy usually flows outwards then he or she is an extrovert, while if the energy usually flows inwards, the person is an introvert.Extroverts feel an increase of perceived energy when interacting with a large group of people, but a decrease of energy when left alone. Conversely, introverts feel an increase of energy when alone, but a decrease of energy when surrounded by a large group of people.
…This explains why even though I am quite outgoing, social, and energetic - I am introverted since I need equal amounts of down time to myself in order to not be a cranky b****, i.e. I “loose energy with people, and gain it when alone”
“He realized that the glasses were surgically inset, sealing her sockets. The sliver lenses seemed to grow from smooth pale skin above her cheekbones, framed by dark hair cut in a rough shag. The fingers curled around the fletcher were slender, white, tipped with polished burgundy. The nails looked artificial.”
- introduction of Molly Millions, from William Gibson’s Neuromancer