A wearable glasses is provided. The wearable glasses includes a sensing circuit, a communication interface, a display, a memory and one or more processors. The sensing circuit senses movement information of a user wearing the wearable glasses. The communication interface receives notification message information. The display displays the notification message information within an angle of view of the user wearing the wearable glasses. The memory and one or more processors execute one or more programs including instructions to obtain environment information, determine a movement state of the user based on the sensed movement information of the user and the environment information, and control the display to display the received notification message information according to the movement state of the user.