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 data indicative of a response by the person to a first electronic content displayed on the display surface; an analytic circuit operable determine an indication of an expression by the person corresponding with the displayed first electronic content, the determination based on the data indicative of a response; a characterization circuit operable to determine an attribute of the displayed first electronic content; a query circuit operable to cause a search for a second electronic content corresponding to the indication of an expression and to the attribute of the first electronic content; and a chooser circuit operable to select the second electronic content from a result of the search.