An apparatus and method utilizing a mobile communication device including a housing, an earpiece coupled to the housing, a keypad coupled to the housing, and an array sensor coupled to the housing. The array sensor is distributed across a significant portion of a face of the housing to allow the detection of various conductive profiles in close proximity to the housing. A portion of the array sensor may be positioned underneath the keypad. The mobile communication device can sense a change in a field across the array sensor and adjust a parameter of operation of the mobile communication device based on the change in the field across the array sensor in response to a conductive profile.