A terminal apparatus includes an interface to detect a touch input, to detect a touch region corresponding to the touch input, and to identify an object that is overlapped by the touch input by at least a reference percentage in the touch region as a first object; a processing unit to generate a second object based on the first object, and to display the second object in an untouched region; and a control unit to execute an operation corresponding to the second object. A method for executing an operation according to a touch input includes detecting a touch input and a corresponding touch region; identifying an object overlapped by at least a reference percentage in the touch region as a first object; generating a second object based on the first object; displaying the second object in an untouched region; and executing an operation corresponding to the second object.