A computer-implemented method, system, and program product comprises a behavior processing system for capturing a three-dimensional movement of a user within a particular environment, wherein the three-dimensional movement is determined by using at least one image capture device aimed at the user. The behavior processing system identifies a three-dimensional object properties stream using the captured movement. The behavior processing system identifies a particular defined behavior of the user from the three-dimensional object properties stream by comparing the identified three-dimensional object properties stream with multiple behavior definitions each representing a separate behavioral signal for directing control of the document. A document control system selects at least one document element to represent the at least one particular defined behavior and inserts the selected document element into the document.