1. A mobile phone, comprising: a pressure-sensitive detector situated along a side edge portion of the mobile phone; a display surface; a processor; and instructions which are executable, using the processor, to perform functions comprising: detecting, for a user of the mobile phone, an object of interest from among at least one object displayed on the display surface; determining, for the object of interest, each of at least one operation invocable for the object; determining, by the detector, a current location of each contacting finger of the user, the contacting fingers being in contact with a first side edge portion of the phone; and for each contacting finger, positioning a graphical representation of a respective one of the determined at least one invocable operation on the display screen in proximity of the current location of the contacting finger, each positioned graphical representation being operable to invoke the respective invocable operation in response to the user indicating a selection of the positioned graphical representation.