By modeling the stages of Petronio's communications privacy management (CPM) process with demographic, network and behavioral data, we have identified a range of factors associated with privacy behavior in the social network site Facebook. Particularly, we found that gender, network size, weak tie expectancy violations and increasing levels of interpersonal privacy practices were associated with having a friends-only Facebook profile. Although we did not find support for all of the stages of CPM in our models, we feel that CPM provides researchers a valuable process-oriented approach to privacy that can be supported in HCI.