1. An apparatus for providing a tactile sensation in cooperation with a display device for displaying a virtual image, the apparatus comprising: a communication unit configured to receive information on a virtual image and the image of the user body from the display device; a determiner unit configured to determine whether or not a user attempts an interaction with the virtual image by using the image of the user body; a tactile-sensation provider unit configured to provide a tactile sensation to a preset body part of the user based on a determination result of the determiner unit; a tactile-sensation provision controller configured to adjust a position of an ejector nozzle of the tactile-sensation provider such that the ejector nozzle is positioned in correspondence to the position of the virtual image; and wherein, when a showing of the virtual image is predicted, the tactile-sensation provision controller adjusts the position of the elector nozzle in correspondence to the position of the virtual image.