When served a meal, a blind person may ask where the different foods are located on the plate. The most common way to describe the location of a particular food on a plate is to think of the plate as the face of an analog clock. The part closest to the diner is 6 o'clock, the far edge is 12 o'clock, the left side is 9 o'clock, and so on. The blind person may also probe discreetly across the plate with a fork. It is fairly easy to distinguish different foods this way.