"Introverts commonly:
-feel drained from a lot of interaction; prefer a few close friends and sometimes feel lonely and over-stimulated in a crowd; gain energy from private time and need space to be alone.
-have a strong internal processing preference and verbalize only necessary information; gain insight and come to conclusions independently; listen and observe more than talk and participate.
-enjoy meaningful, in-depth conversations about internal feelings and experiences with carefully chosen people, are less likely than extroverts to share their feelings and reactions with casual acquaintances."