The present invention relates to a method for using a toy for communicating with a client terminal. The method comprises encoding at least one interacting information as at least one flickering control instruction and using a toy element having a light emitting unit for emitting light according to the at least one flickering control instruction, thereby transmitting the interacting information to a client terminal. The client terminal is configured for capturing the emitted light using an image capturing device and decoding the at least one interacting information therefrom.