A system of an amusement park attraction includes an optical sensor configured to detect light and provide optical data based on the detected light and a controller having circuitry communicatively coupled to the optical sensor. The controller is configured to receive the optical data, process the optical data to detect a first movement of a user and a second movement of a handheld or wearable object, detect a correlation between the first movement and the second movement, and associate the handheld or wearable object with the user based on the correlation.