patterns encountered throughout everyday life. A recognizable face can sometimes be perceived even when the available information is incomplete. This is also why people occasionally see face-like patterns in clouds, rock formations or other objects. In a deliberately designed hidden-image puzzle, the artist can use that tendency intentionally by arranging ordinary environmental features so they collectively suggest facial characteristics.
If the face remains difficult to locate, changing viewing distance can sometimes help. A viewer sitting very close to the screen may become absorbed in individual branches, patches of snow and
