1. Always do what you say you are going to do
2. Be there on time
3. Always say please and thank you
I know these may seem like common sense but you would be surprised at how many people let these three slip. Saying you are going to do something is a promise, a promise broken is trust broken.
When you are later that you said you would be for a meeting or worse still, late delivering your product or service, that is trust broken.
Never saying please and thank you makes people question your integrity. Guess what……trust is broken.