I know it's cliche and trite, but it's so true:
If you're going to talk the talk... then you better walk the walk!
Shut up and play!
Put your money where your mouth is!
Action speaks louder than words!
(Nike said it best): Just Do It!
My biggest pet-peeve when I'm coaching is the student who talks the big game, says all the right things, but never follows through.
If you're that person, don't be... simple as that!
Quiet confidence is much more powerful than loud emptiness.