How to be humble, or what makes someone humble ?

Being humble to me is when you don't take your power in something for granted. Like let's say you know about something more than your average person. If you brag about it and make people feel bad because they don't know or understand, then your not humble. Humble is also being able to ask someone for help or constructive criticism without getting bent out of shape about it but using as a way to get to upgrade yourself. It takes humility and admitting that your a moral failure but not in the case of being shallow, but being confident in your flaws.