Brian Little: Who are you, really? The puzzle of personality

TED 2016
Brian Little: Who are you, really? The puzzle of personality  (script)
Summary
It is not necessary for you to be a certain type of person.
Our characters always present opposite side. For example, there is a person who is open to experience versus who are closed. A person is diligent versus languid, extrovert versus introvert, and agreeable versus neurotic. They influence your life. However, their communication way is only different or expression way is different.
Thus even if you see the same thing, you show it the different way. You are sometimes like some other person, but you are like no other person.
It is important that you are you more than how to use your characters.
Your own way maks people understand you and love you.
Overdoing is not necessary. Who are you? You are you.

Words in this story
assertive /
agreeable / enjoyable and pleasurable; pleasant.
diligent / industrious, hard-working
languid /  slow and relaxed,dull, sluggish
extrovert/ an outgoing, overtly expressive person.
introvert / a shy, reticent, and typically self-centered person.