Microsoft® Manual of Style, Fourth Edition

Modes of interaction

This section describes modes of interacting with the user interface.

Gesture

Use gesture to refer to a motion that the user can make to interact with hardware such as a touchpad, or a software program such as a game.

An air gesture can be a movement made by any part of a user’s body to give an instruction to the program via a sensor or camera, or a pose that the user makes in front of a sensor or camera to which an avatar will react.

A contact gesture can be a motion made with a user’s finger or hand directly on a screen or surface. If such a gesture is made above the screen or surface, it is an air gesture.

It is all right to use title capitalization for gesture names. Consult your project style sheet for the appropriate capitalization ...