Provided is a terminal apparatus including a display unit displaying an execution screen of a shared application, reflecting on a display operations performed by multiple users as operations performed on one application, where the shared application includes a function for displaying an identification object that associates each of the users with an operation result, displayed on the execution screen, reflecting the operation performed by each of the users, a function for setting, when a first user selects an identification object related to a second user and specifies a region on the screen, the specified region as a shared region that is shared by the first and second users, and a function for controlling, when the first or second user performs operation in the shared region, such that the displayed operation result reflecting the operation is not shown to users other than the first and second users.