Honesty is the human quality of communicating and acting truthfully. This includes listening, and any action in the human repertoire — as well as speaking. And you? You cannot tell a lie. Both loved ones and strangers should trust you, because you won't (1) lie, (2) lie via omission, or (3) sit there and let lies be told. (Can you even let a sleeping dog lie?) All 7 virtues are a part of you, but your honesty runs deepest.
Your biggest risk is hurting the feelings of your most sensitive friends. However, most appreciate you for your candor.