A device identification method, a communicative connection method between multiple devices, and an interface controlling method are disclosed herein. The devices include a first device and at least one second device. The first device includes a touch-sensing interface and a first wireless communication module. Each second device comprising a second wireless communication module and physical contacts arranged with a distinct pattern. The communicative connection method includes steps of: sensing a multi-touch input by the touch-sensing interface when one of the second devices is currently placed upon the touch-sensing interface of the first device; identifying the second device currently placed upon the first device by matching the multi-touch input with the distinct pattern; and, forming a wireless communicative connection between the first wireless communication module of the first device and the second wireless communication module of the matched second device.