A method of performing an action in relation to a first association between a reusable sticker and an object, the reusable sticker having disposed therein or thereon coded data indicative of a sticker identity and of a first interactive element representing the action, the method including: receiving first indicating data from a sensing device, the first indicating data being at least partially indicative of the sticker identity and the first interactive element, the sensing device, when placed in an operative position relative to the first interactive element, sensing at least some of the coded data to generate the first indicating data; identifying, using the first indicating data, the action and the first association; and, performing the action in relation to the first association.