hee hee...See Wil, that's why I bought a cell phone, so when I go walking down the street mumbling to myself it appears that I'm doing something constructive.
I remember back in the 80's before bluetooth...eye had a corded earpiece/mike outta my 'bagphone' and would walk around talking to myself in DC... Of course I was not alone. (Reagan had defunded the asylums and trippled our homeless, many of which still needed treatment and care....)
But oh the looks I got. Especially since I have a tendency to talk with my hands.