When do you best demonstrate yourself as a leader?

"I best demonstrate myself as a leader when I know that a coworker could use my assistance. I seem to be a natural teacher and mentor which means that when someone is struggling, my first instinct is to train them. Just recently, I coached a new employee on a sales technique that helped her to achieve her quota for the first time. I look forward to working in this role with you because it will allow me to take on further leadership opportunities."

"In my current position, every time my current manager is away, I take on the role of leader for our team. This leadership opportunity takes place usually one day per week. When you call him for a reference, he will be able to tell you that I have naturally stepped into the responsibilities associated with being a leader."