1. A system comprising: a display surface operable to display electronic content in a manner perceivable by a person; a sensor apparatus operable to acquire sensor data indicative of a response by the person to a first electronic content displayed on the display surface, the acquired sensor data to not include data directly inputted by the person using a user direct-input device; an analytic circuit operable to determine an indication of an expression by the person corresponding with the displayed first electronic content, the determination based on the acquired sensor data indicative of a response, the analytic circuit including a wearable/mountable sensor that includes sensor data indicative of the response; a characterization circuit operable to determine an attribute of the displayed first electronic content; a query circuit operable to cause a search of at least one of a Web database or a Web index for a second electronic content corresponding to the determined indication of an expression by the person corresponding with the displayed first electronic content and to the determined attribute of the first electronic content; and a chooser circuit operable to select the second electronic content from a result of the search.