Question
I'm an introvert.
What’s one thing (one sentence) I should force myself to do in order to quit my introvert state and have the confidence of talking like a CEO should have, in any situations?
Answer
Like Dan said, put yourself out there. Being an introvert doesn't mean you can't be outgoing in public settings. It just means that your preference - where you recharge your batteries - is when you're alone or in very small groups.
Just be aware of the need to strike a balance between your desire for quiet and your need to push yourself out of that comfort zone.