Keith Johnstone's book Impro recommends an exercise involving looking around and naming everything you see out loud, but deliberately giving the wrong name in e

Keith Johnstone's book Impro recommends an exercise involving looking around and naming everything you see out loud, but deliberately giving the wrong name in every case. Look at a chair, say "banana!", stuff like that. Can be done with a partner or a group, too. A few minutes of that is supposed to have a perspective-shifting effect—making things feel off such that you notice more details—lasting hours or days. I tried it once, just for just a few seconds, and it did seem to have an effect. Need to try really doing the exercise one of these days.