Look up from your smartphone. What do you see? If it’s any random street in New York, chances are it’s other people, fondling their cellphones like they’re Gollum and its The Ring. Recently a friend suggested a new rule: Let’s at least put it away while we’re crossing an intersection? But even that simple restriction has proven difficult to follow. If the traffic light countdown shows more than 10 seconds, the device somehow slides out of our pocket and back into our grubby hand. My precioussss.