Humour can be an essential skill for senior leaders, as it helps build a more relatable persona and fosters open communication within teams. A recent study on "Humour at scale” at McKinsey & Company found that humour can be part of a company's global culture. However, leaders should be cautious not to use derogatory or non-inclusive humour, and it should be contextual, relevant and real to connect with audiences. Humour can make leaders more approachable and foster engagement but should be used wisely.