When cheering of a distributor avatar by virtual avatars has been detected and the distributor avatar reacts to the cheering, a reaction motion is performed for the virtual avatars that cheered, and a normal motion that is not a reaction motion is performed for the viewer avatars that did not cheer. The motion performed for the virtual avatars that cheered differs from the motion performed for the viewer avatars that did not cheer based on timing indicated by the distributor. Either the motion performed for the virtual avatars that cheered or the motion performed for the viewer avatars that did not cheer is a predetermined motion.