Whatever you do don't break people's trust for you. Trust is a key ingredient needed for success especially in the corporate world. When people don't trust you they will find it really difficult to work with you. Learn to build trust. One sure way to build trust is to be a man of your word. Follow through with your promise. Under-promise and over-deliver.
Moreso, you should never forget is don't ever give out your trust freely, always verify if people are really worthy of your trust.
Throwing your trust freely to people who are not trustworthy will set you up for backstabbing and disappointment. Take heed.