I do this also especially if I am upset about something. When I am by myself sometimes I even talk out loud. I think it makes me feel better to get things off my chest even if there is no one else there to hear me. Sort of like the talking cure minus the therapist. Sometimes when I am on the sidewalk walking down the street I will talk out loud to myself about something I have been wrestling with. Then I start to feel self conscious that people driving by may see me talking out loud to myself and think I maybe a couple of bananas sort a bunch. To deal with this worry I found this old blue-tooth ear piece. Even though it doesn't work I wear it so that the people driving down the road will think that I must be talking to someone on my cell phone. Beside I heard a long time ago it is alright to talk to yourself as long as no one else is listening (besides yourself of course.)