A method includes defining a virtual space, wherein the virtual space comprises a second avatar object and a first avatar of object, the first avatar object is associated with a first user, and the first user is associated with a first head-mounted device (HMD). The method further includes identifying a position of the first avatar object in the virtual space. The method further includes defining a visual field from the position in the virtual space. The method further includes generating a visual-field image corresponding to the visual field. The method further includes displaying the visual-field image on the first HMD. The method further includes identifying a relative positional relationship between the first avatar object and the second avatar object. The method further includes displaying an enlarged image of at least a part of the second avatar object in response to the relative positional relationship satisfying a predetermined condition.