An introvert is a person who tends to be more focused on their own thoughts and feelings, and who gets energy from spending time alone, rather than being around other people. Introverts are often seen as quiet and reserved, but that is not always the case. Everyone is different, and introverts can have outgoing personalities and enjoy socializing, just like extroverts do. The key difference is that introverts tend to need more time to recharge and feel energized after socializing, while extroverts may feel energized by being around others.