There are two key things you must practice to be a successful company leader: Care deeply about employees, while not caring what they think about you, and always be yourself, Twitter CEO Dick Costolo said on Tuesday at the TechCrunch Disrupt conference.
"Don't try to be liked. You build trust by being forthright and clear with them and communicating with them based on clarity. ... Don't worry about what they think about you," Costolo said. "If you are yourself and you manage by deeply caring about your people while not caring what they think about you, you will be as successful as you can possibly be."
(Read more: Twitter is talking to banks about an IPO: Report)