How can introvert leaders lean in?

Sheryl Sandberg and Susan Cain discuss how introverts can lean in and how introverts can be powerful leaders. 

You often find effective leaders who are introverts who didn’t get there by the desire to be a leader, they just had this passion for something. In the service of that passion, they end up acquiring expertise and building networks and so on, and that is a really authentic path to leadership.
— Susan Cain

If you watch this video, I hope you get a sense for why I respect and admire both of these women for their intelligence and entrepreneurial and collegial spirit.