A device includes a processor and a memory comprising machine readable instructions that when executed by the processor, cause the system to display information to a user through a display screen of the device, the display screen being positioned on a front side of the device, receive a first input from a first sensor placed on a left side of the device, the first input indicating a placement of at least one appendage along the first sensor, receive a second input from a second sensor placed on a right side of the device, the second input indicating a placement of at least one appendage along the second sensor, and execute a predefined function within an application running on the device, the predefined function being based on both the first input and the second input.