Define leadership in your words.

Without having vision, trustworthiness, high self-esteem, optimism, focus you can't be a good leader.Here need to share the skills you have which makes you a leader.Just answer this question by describing a situation where you had to show your leadership. However if you have not played a leadership role at work then don't panic,  you can use any of your personal experience to illustrate your leadership experience and potential.You just need to have a little lateral thinking here.