To help people move from high-level goals to specifics. "We want to build the world's best widgets." "How?" "Well, first we'll look up widget in a dictionary. Then, we'll…"
Be careful to revisit your questions from time to time.
Ask, "How?" enough and you can go from leadership goals all the way down to the paper clips needed to reach the goals. In fact, most layers of management essentially take their own goals, ask, "How can we reach these?" and use the answers as goals for their direct reports.