You know that friend who seems quiet in groups but becomes a total chatterbox when you’re one-on-one? Or the person who’s always the life of the party but gets weirdly focused when they’re working ...

Are introverts better friends than extroverts, because they invest more in each of their fewer friendships? Do they have to do most of the work to maintain friendships with social-butterfly extroverts ...

Extroverts feel energized by being around others. Going to a big party, nightclub, or popular restaurant makes you feel alive ...