I talk out loud to myself all the time. Usually it's to keep things straight in my head. My kids catch me too and say "you're talking to yourself again". I know that I do it in the car by myself, maybe everyone else thinks I'm singing!? I hope I don't do it too much in public, except I have caught myself in the store, but just whispering. It's embarrassing, but I can kind of laugh about it too. I just say I'm talking to the dogs or cats!
HUGS!