There is really no need to portray your true nature to anyone else. You put on a mask everyday, up to a certain point, you become so engrossed in it all, you have already forgotten who you are beneath it. Just like many other things, most of the times, the truth doesn't always count, but the perception does.
People view you as a continuum of images being portrayed inside their heads. Their perceptions may lie upon actual contacts with you, or perhaps upon what they hear from others. Nobody can ever truly understand what you are beneath your thick skin, they can merely judge the surface.
You cease to exist as yourself, and you live as a book cover. There is no other way, but to continue living and smiling, in spite of how pathetic everything really is.