An interactive product is provided. The product comprises a surface having a writing position-code region. The writing position-code region has a first subset of a position-code provided thereon which codes a plurality of positions on the writing position-code region to enable electronic recording of information which is being written on the writing surface position-code region, by means of a sensing device which detects the position-codes. At least one activation icon is coded by a second subset of the position-code representing the activation icon and coding at least one position. The activation icon, when detected by the sensing device, causes the sensing device to initiate a predetermined operation. The sensing device detects the activation icon by reading a flag from at least the second subset of the position-code. The flag distinguishes the second subset of position-code from the first subset of the position-code.