if you aren’t already aware, i have a tendency to talk to myself. and not just in my head like jd from scrubs. i actually speak out loud to myself. usually i don’t do this when there are people around, strangers or otherwise, though its been known to happen. essentially i’m just talking thinking out loud, but in a conversational style.
i’ve also a tendency, though with less frequency, to sing quietly to myself if i’ve got a particular song in my head. sometimes i don’t even realize i’m doing it, especially if i’m concentrating on something else. like ordering dinner.