· Discovery: lexical hypothesis= if something is truly important and universal, many words for it will exist in all languages. Personality traits have been narrowed down from 4500 words to the Big Five because all of the words tend to fall into groups defined by the big five
· Extraversion: the act, state, or habit of being concerned with obtaining gratification from what is outside the self
· Agreeableness: manifested in behavioral characteristics that are seen as kind, sympathetic, cooperative, warm, and considerate
· Openness: includes active imagination, aesthetic sensitivity, alertness to inner feelings, preference for variety, and intellectual curiosity.