Author Susan Cain, a self-described introvert, accepted an invitation to do what she feared — give a TED talk. Although she was anxious on the big day, she got through it and wowed the audience.

While we all know individuals who are wildly outgoing, plenty of fun to be around and occasionally even obnoxious, chances are we relate less to these extroverts and more to introverts or people ...

Many people had told me that delivering a TED talk could change my life. And they were right—but not only in the ways that I’d imagined. There were the changes I’d hoped for: I got to meet ...