“Trust is like a mirror, you can fix it if it's broken,
but you can still see the crack in that mother f**ker's reflection.”
― Lady Gaga
(Cynical, or does the above quote reflect reality?)
Sometimes, to be be trusted is the greatest compliment, sometimes even better than being loved, depending on the situation.
The bottom-line in building trust is to be consistent in your actions. We must either keep our promises or not make any we know we can't keep.