1. A gesture recognition method, comprising: a collection step of collecting action information about a user; a gesture recognition step of recognizing the action information; an inquisition step of inquiring an action instruction corresponding to the recognized action information from a personal action database of the user, a correspondence between the action information about the user and the action instruction being stored in the personal action database of the user; and an execution step of executing an operation corresponding to the inquired action instruction, wherein information about an application type is stored in the personal action database of the user, the gesture recognition method further comprises, prior to the inquisition step, a step of acquiring the information about the application type, the information about the application type indicating a type of an application used by the user, and the inquisition step further comprises inquiring the action instruction corresponding to the recognized action information from the personal action database of the user in accordance with the information about the application type.