While displaying a first view of a three-dimensional environment corresponding to a first viewpoint, a computer system detects a change in grip of a user's hand into a first predefined grip in conjunction with detecting a gaze input directed to a respective position in the three-dimensional environment. If the respective position is a first position, the computer system replaces the first view with a second view of the three-dimensional environment corresponding to a second viewpoint that is selected in accordance with the respective movement of the user's hand and the first position in the three-dimensional environment; and if the respective position is a second position, the computer system replaces the first view with a third view of the three-dimensional environment corresponding to a third viewpoint that is selected in accordance with the respective movement of the user's hand and the second position in the three-dimensional environment.