In one embodiment, a gaming machine has a digital camera and automatically takes a picture of a player. Facial detection software identifies certain facial characteristics of the player, such as approximate age and gender. Rules software then selects appropriate sets of animation images and sound files that are associated with the detected physical features of the player. The displayed game, user interface, theme, etc. are then adapted to the player's detected features. If the player is identified, by comparing the picture to previously stored pictures, a personalized message may be displayed. When the gaming machine is in an attract mode, the camera may take pictures/videos of passersby and adapt the attract mode animation to the passerby's physical image or movement. In another embodiment, the camera is used to sense physical motions by the player to control aspects of the game or other displayed features.