Abstract or Summary:
Interaction with a touchscreen interface requires a pointer to target the desired interaction. The effort normally requires the use of two hands; one to hold the device and the other to manipulate the device. The lack of haptic or auditory feedback to indicate a specific screen position requires visual confirmation of the input by the user.

Widespread use of smartphones in less than optimal conditions challenges the usability of requiring two hand input and eyes-only feedback. In situations where inconspicuous use of technology is desired, typical manipulation of the interface using eyes and hands may be too obvious. This study looks at the option of using the nose as both a stylus and a valid means of authentication to address such situations where typical hand-eye manipulation of touchscreen security technology is not desirable.