I was in a work situation yesterday and one individual was overly confident verging on "cocky" and another individual was nervous and jittery. There was no reason for either individual to be overly either way but it got me to thinking how did they become that way? Is confidence taught? Or is it something your "born with"?

My DH and I are both confident but not overly confident (I guess that could be up for debate ) and it breaks my heart when I see or come across people who don't believe in themselves. I hope to instill confidence in my DD but I'm wondering how to do that....

What is your take on confidence? Are you confident or not? If so what, if anything, helped or hindered your confidence??