8. The method of claim 1 , wherein the at least one characteristic of the gesture comprises a direction of a first portion of the portion of the gesture and a direction of a second portion of the portion of the gesture, and wherein adjusting the spatial model probability associated with the one or more keys comprises: responsive to determining the direction of the first portion approximately corresponds to the direction of the second portion, decreasing, by the computing device, the spatial model probability.
9. The method of claim 8 , wherein adjusting the spatial model probability associated with the one or more keys further comprises: responsive to determining the direction of the first portion does not approximately correspond to the direction of the second portion, increasing, by the computing device, the spatial model probability.