Do you find yourself, as an INTP, moving your lips like you are speaking but without sound emanating from your mouth just moments before you actually speak the words? I remember as a child my brother asking me why I would speak, or rather move my lips, without saying anything, only to say the same thing with sound only moments later. I told him that I didn't do this, but he insisted that I did. Eventually I realized that he was correct because I caught myself doing this without even realizing it. I believe I do this when I am in so deep of thought that I am almost entirely detached from my physical body and completely oblivious to the world around me. I am thinking so hard that my imagining of what I am about to say to someone actually comes through in the movement of my lips lol.