Talking to Yourself: Not Just For Hobos Anymore!

So I have a problem.
I guess I had it before now but I think it may be getting worse.
Or maybe it's just that I'm paying more attention to it.
I'm not sure which is worse.

My problem is that I have a tendency to talk to myself in public.
It's not just in public, of course, it's just I talk to myself all the time and sometimes forget to shut the hell up if there are people around.

Now thankfully most people don't notice.
I'm generally pretty quiet regardless, so I can usually bank on nobody having heard.
But sometimes there are those instances where there's no way they didn't hear.

(sidenote: All of these have happened to me, almost word for word)

So what do you do?
They're three inches away, and either looking right at you or are the only other person in a small room FILLED WITH TILE.

Way I see it, there's three options you can take:

1. Try and play it off like you were starting a conversation. (WARNING: Severe risk for crushed self-confidence and self-loathing; PROCEED WITH CAUTION)

 

2. Pretend you weren't in fact talking to yourself. (Only works if in enclosed space--otherwise YOU WILL LOOK CRAZIER)

Has highest success rate

3. Just fuckin' roll with it.