The present invention provides a system and method for interacting with a 3D virtual image containing activatable objects. The system of the invention includes a 3D display device that presents to a user a 3D image, an image sensor and a processor. The processor analyzes images obtained by the image sensor to determine when the user has placed an activating object such as a hand or a finger, or has performed a gesture related to an activatable object, in the 3D space, at the location where the user perceives an activatable object to be located. The user thus perceives that he is “touching” the activatable object with the activating object.