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.