Vanity is worrying about how others perceive oneself. <br />
Confidence is not caring about it.
I don't know what "IYO" is. I've noticed that DOERS tend not to have a need to boast.
when it is all about u...vanity...when you can get 'er done and done right! - confidence
Confidence is being aware of your self worth and owning it. Vanity- is really just insecurity wrapped in a thin la<x>yer of attitude.
vain people put tons and tons of effort into looking their best and having people see them as attractive and or the best...<br />
confident people do not need to put forth as much effort because they know they are attractive and know they are the best they can be.
soloungey said it best :)