Methods, systems, and techniques for analyzing the level of engagement of viewers of shared digital displays and enhancing that engagement by dynamically modifying the content of the display and incorporating personalized content created by viewers are provided. One example embodiment is the Dynamic Content Analysis and Engagement System (DCAES), which enables the operator of the system to analyze engagement, generate metrics, manage owner and viewer generated content, and dynamically modify the content on the shared display to increase the engagement of the viewer. In one example embodiment, the DCAES comprises an attention sensor module, an analysis module, a content management module, and a display control module.