I spy with my little eye is a game in which one player (the observer) finds some arbitrary object within a particular space, and the others try to find out which object the observer is looking at. Clues can be requested by the ones guessing, most commonly based on the colour of the object, perhaps also size, density, etc. Clues are given until the object has been identified by the ones guessing.
As the players improve their skills, larger and larger areas can be defined as boundaries for which the object can be located in, as more advanced questions are asked about the properties of the object.
Many do not consider the game the game particularly interesting or fun, but it is a very effective therapy for prolonged tunnel vision. It is my opinion that this simple game should be played by people more often, at least once a week or so, so as to prevent the rampant tunnel vision present in our society.
For those interested in seriously improving their observational skills, I have a feeling that use of the psychoactive nut nutmeg along with this game could prove to be more interesting.