Do you mumble?

Yes, when my brain is too full of something (usually a problem), I will mumble to myself as I work it out.

I mumble to myself, but that might come under the category of "talking to myself under my breath" and not general mumbling.

not nearly as much as I used to. my job (phone support) requires that I speak clearly. *what daver said

I don't believe so. Sometimes I speak softly and my SO can't hear what I'm saying, but I don't think that's the same thing. Plus he's a bass player so his ears are shot anyway from his band ;)

...though I've found myself doing it more, recently, as I catch myself thinking further ahead of what I'm actually saying.

It is my responsibilty to ensure that people never understand what I say. If they did then they would know too much.

mmmmhrrrmmmmurmmmmphhrrrumhrrrmph. What? Oh, I said sometimes when I'm upset.

My speech is typically a bit slurred anyway...does that count?

I have hearing problems so I have a hard time judging the volume of my voice so sometimes it comes out as a mumble.

Terrible habit of mine, I talk softly and/or mumble. Part of me is assuming that the other person will simply understand what I'm saying/thinking automatically. I have a lot of verbal issues...

Mainly, when I am so mad I sputter & really don't want anyone to hear what I have to say.

I never used to, although I would sometimes stutter; I noticed myself mumbling more and more, and started watching for it; I think it's gotten better now.

It seems to depend. I've often been complimented on my excellent diction, but then I've had SO's with hysterical stories of what they thought I said when I was mumbling. One thing is that I talk to myself a lot and I think that when people overhear my musings they think I am talking to them and mumbling.

I'm sorry....could you repeat that please?

my first answer was "all the time!"... and then I realized you probably meant "...when talking to other people" so I changed it to "sometimes."

mmm mmf mm, mm hmm?

I think I do it mostly when I think I'm supposed to be saying something but I'm not sure what.

My fiance claims that I mumble all the time, but it's just not true.

I talk to myself ... I'm loud about it though.

I think I have a slight hearing problem. It sounds to me that I am speaking at a normal level but people tell me I speak very softly. Maybe it's that I've been around so many loud mouthed people I don't want to come off sounding like them. I do speak distinctly. I may grumble but I don't mumble.

More often than mumbling I talk too quickly.