Systems, methods and articles of manufacture for performing an operation comprising receiving, by a first wearable device, input specifying to establish a relationship with a second wearable device within a predefined distance of the first wearable device, receiving, by the first wearable device from the second wearable device via wireless data transmissions, an identifier of the second wearable device, a tile identifier of a tile communicably coupled to a tile interface of the second wearable device, and a state associated with the tile; and storing, in a first entry of a data structure of the first wearable device, an indication of the relationship with the second wearable device, wherein the indication comprises the identifier of the second wearable device, the tile identifier, and the state associated with the tile.