But there is more to the posters’ allure. Significantly, they catch the viewer on his way somewhere, the “in between” moments of the day that are in the interstices of our more purposeful mental engagements. That is, times when one might be bored, waiting for a streetcar, or simply strolling around, looking for something to catch the eye. The attentional habit of gazing at the world with nothing better to do has doubtless been a human practice since the species emerged.