A method of appealing to customers smartly includes the steps of: choosing from a crowd a potential target customer with greatest customer characteristic compliance; attracting attention from the target customer by a light ray, image, and/or voice; capturing the target customer' images and synthesizing a 3D human image; retrieving goods images and applying them to the 3D human image to synthesize a composite image; displaying the composite image on a display screen; capturing an image about a facial expression or gesture of the target customer watching the composite image and ranking the goods images by the target customer's preference for the goods images; replacing less preferred ones of the goods images with others; and playing an invitation video or audio when a proportion of the preferred ones of the goods images among the retrieved goods images exceeds a predetermined value. A device for implementing the method is further provided.
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