A method for wirelessly connecting a first device with an external second device includes wirelessly communicating between the first device and the external second device. Based on the wireless communication, the first device causes displaying of a dynamic graphic pattern on a display of the external second device. The dynamic graphic pattern having a shape that changes over time. A camera of the first device receives the dynamic graphic pattern. The first device recognizes the dynamic graphic pattern associated with the external second device. Data is wirelessly transferred between the first device and the external second device based on the recognized dynamic graphic pattern.