Warren Buffett is a high-profile public figure who comes off as gregarious and folksy in his interviews and appearances. Based on his easy manner, his obvious delight in storytelling, the raptness of his audiences, and his willingness to endure the shame of strumming a ukulele in public, we might be inclined to think of him as an extrovert. Nonetheless, the “Oracle of Omaha” is often cited as a case study in introverts as effective leaders.