A communication robot is communicably connected with a collaboration device that is communicable with a Social Networking Service (SNS) system providing an SNS. The communication robot includes a memory, and a processor coupled thereto. The processor receives update information generated responsive to an update of a contribution on a specified group in the SNS; recognizes a user by face recognition; when the user is recognized and an update of the contribution which is not yet output exists when the user is recognized, outputs the contribution; and when the user is recognized and any update of the contribution which is not yet output do not exist when the user is recognized, performs an autonomous speech conveying information about an event irrelevant to the specified group. The autonomous speech varies depending on whether or not the communication robot speaks for a first time since a preset time.