This is a skill I’ve been working on for years. As it’s helpful when you’re applying for jobs or trying to meet new people. Now that’s not to say that all introverts are shy and private, while all extroverts are outgoing and talkative. But that’s the stereotype of each. I am an introvert so I recharge when I’m alone, prefer one-on-one conversations, have few relationships but they are really in depth, don’t like attention, and share ideas when prompted. And there’s nothing wrong with that. But sometimes you need to fake being an extrovert in different circumstances.