Leaders inspire action. Whether it's with their co-workers or with those in the organization above or below them in the formal hierarchy, leaders have the ability to inspire those around them to take action to achieve a common goal. Communication is the glue that holds the individuals in an organization together. Great leaders are great communicators. Not only do they inspire others with their words and actions, but they paint visions of the organization's future that compel others to follow.
Leaders support and facilitate.
Leaders support those with whom they work, and they help their employees achieve their goals. They do so by creating an environment that supports initiative, individual action, and prudent risk taking. Anyone can be a leader. All it takes is the initiative to enlist others to support and join you in your efforts to improve your organization. After all, leadership is more about influence, than authority.