Someone who recharges their energy from being around people. Doesn't mind being alone, but prefers the company of others as it makes them excited. Doesn't mean that they are good with people or happy all of the time, but that other people's company is important to them.
Extrovert: "Hey, I had a really bad day, do you want to grab coffee or something and just hang out?"
Introvert: "Sure, I'm feeling good because I took last night for my introvert time and can hang."
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