The word trust is defined as “firm reliance on the integrity, ability, or character of a person or thing.” You trust your chair is going to hold you up. You trust the person who is driving you to work, or you trust yourself to drive carefully.
You also trust your friends. You trust that what they tell you is true. To be trusted, you must be trust-worthy. Being trust-worthy is part of having integrity and character.
Are you a person who can be trusted? If you are, then people will trust you and you will find it easier to trust them.