Chapter 4 focusses on the local level in order to examine the way different parts of arenas lend themselves to varying forms of ordering. Within an inner circle, actors engage more regularly, revealing themselves to one another and thereby creating pressure for a stable order. An outer circle is more illegible, diffuse, and widespread, which allows actors to use it as a refuge for fluid ordering. The shape of an arena is not a deterministic structure but rather one that actors deliberately mould to support the forms of ordering that benefit them most. This line of research ascertains (1) why, how, and where actors create the dividing line between an inner and outer circle (drawing the line), (2) why and how actors enter or leave an inner circle (crossing the line), and (3) what forms of interactions make a line obsolete between inner- and outer-circle actors (erasing the line).