My brother-in-law created a game Bluetooth or Crazy. It’s simply to play. Whenever you see someone “talking to himself,” decide if he’s talking on a Bluetooth device, probably attached his ear, or simply talking to himself. It’s more fun if the subject is gesturing.
It passes the time when you’re standing in line like at Starbucks. It’s a tough game if you’re stuck in rush hour traffic because many cars have built-in Bluetooth speaker phones. At that point, you have to rely on the “crazy eyes” to make the determination. Of course, if you see someone holding a cell phone, you can pretty much vote for crazy.
One time, my wife joined me after work at Starbucks where she saw a guy sitting at a laptop talking and gesturing. She asked if he babbled a lot on the phone. I told her that he was cuckoo for coco-puffs. I had to move away from the door because he’d gotten up several times and stood behind me to look out. That’s not a recipe for creative writing.
Give it try. You may be surprised by the results.