This video clip begins with two boys, Jaylin and Ethan, standing against a brick wall in anticipation of a start signal from Jeriah to begin the race. Jeriah stands away from the wall as if to establish his role as “starting gun.” He sees that Ethan is looking at him, so he raises his hand to signal that the starting word, “go” is about to be spoken. But Jaylin is not looking at Jeriah, nor is Jeriah concerned that one of the racers is not ready. We might infer that the game is not about winning, and therefore there is no need for an equal chance for all to start at the same time. The game is about running together and yelling. From these simple cues we can deconstruct what the children may be thinking and what rules their actions imply they are using. We see how children with different understandings of the rules of play invent methods to signal and lead each other. Rules change at the margins, but the game still maintains a core structure that gives the game an identity and provides group glee for all participants.