Trustworthiness means being honest, telling the truth, keeping promises, and being loyal so people can trust you. Trustworthy people don't lie, cheat or steal. They have integrity and the moral courage to do the right thing and to stand up for their beliefs even when it is difficult to do so.
Doing the right thing doesn't mean doing what popular opinion suggests. Doing the right thing means doing what you automatically know is right, without a question asked. You are your own person. Act like it. Learn from others. Give to others. Emulate those whom you admire and respect but be your own person.
Being trustworthy, is an honorable way to live. And it is always the better choice for you to live a life filled with integrity.