Extroverts versus introverts: Who make better leaders?

I was only an hour into my four‐hour shift volunteering at the hospital. Dozens of times already, I’d asked, “Hi, how are you? Are you ready for cardio rehab? How many more sessions do you have? Where's your son? Can I help you find something? Is it getting hotter outside?” I’d answered dozens of questions, too: “That's on the second floor. Go to the fourth floor and turn right off the elevator. We don’t have a 260 in this building. Oh, that's in the main hospital.”