In general, this disclosure describes techniques for providing a user of a first computing device (e.g., a mobile device) with the ability to utilize the first computing device to control a second computing device (e.g., a television). Specifically, the techniques of this disclosure may, in some examples, allow the user to use drawing gestures on a mobile computing device to remotely control and operate the second computing device. Using a presence-sensitive user interface device (e.g., a touch screen), the user may use drawing gestures to indicate characters associated with operations and commands to control the second computing device.