I am some times conscious about self talking out loud... I work nights, and have for a while, and talk to myself-- My coworkers are ok with it, some yeah pick on me but those are the ones I pick on them too (so it is all in good fun of course and I joke about it myself).. Some of my talking to myself I have found is acceptable due to it is thinking out loud and letting others know around or passing by of something (i.e. vending machine why wont you take my money, it is just as good as everyone else's I swear! or damn printer, why do you do this to me with jamming my papers.. grr).

I was alone a lot as a child, it has been brought up perhaps that is why I have talked to myself a lot due to as a child I did it a lot and it is a habit-- I like what Ms Laura said as well- a coping mechanism as well-- I tend do talk out loud when something is bs, and will say so as well...

I talk to the animals, and even the ones out side, and trees; i really don't care today if others think it is strange- living things are living things-- I have heard talking to house plants can actually make them grow better... perhaps that is just another odd person like me that is just justifying the talking? I am not sure.

and yes-- Negative chatter of oneself is bad!! Or just Negative chatter in general! Negative energy will follow negative energy at least I do believe...