The act of registering to be a user of a service, product or web page.\n\nRelated actions:\n\n JoinAction: Unlike JoinAction, RegisterAction implies you are registering to be a user of a service, not a group/team of people.\n FollowAction: Unlike FollowAction, RegisterAction doesn't imply that the agent is expecting to poll for updates from the object.\n* SubscribeAction: Unlike SubscribeAction, RegisterAction doesn't imply that the agent is expecting updates from the object.