My voice is a combination of my conscience and instincts, guiding me to making the selfless, honorable decisions in life while making sure I take care of myself. I've never regretted listening to him, and he keeps to his expertise while letting me live the rest of my life how I wish.
As for image, he looks exactly like me but occasionally changes outfits. He's worn BDU's, a black trench coat with a Punisher t-shirt, and currently dresses like an NCR veteran ranger, without the helmet.