Instead of looking at your smartphone while waiting for a table at a restaurant, simply stare at the wall in front of you. People will eventually look there too. Well, not really, they are too busy interacting with other people via their smart device because people have forgotten how to talk to other humans.
Riding on the elevator? Turn to the rear and stare at the wall. When you exit, walk backwards.
While using the urinal, stare at the wall, seriously, this is no time for wandering eyeballs. In a doctors office? Stare at the wall, don’t answer any of their questions, you will probably get a free ride to a nice padded room. Then you can stare at the wall all you want. Dreams come true!