Informal networked deliberation can be hindered if citizens refuse to discuss certain topics with others or do so in an insincere way. Topics that are perceived as being settled and non-contentious in the community, like social norms, might elicit such a response. The problem, however, is that some norms survive with the help of pluralistic ignorance—a situation where most people wrongly believe that most others support a norm when in fact they do not, based on those others’ silence and public compliance with those norms. This chapter proposes a way in which organized group deliberations under the Chatham House rule can be used to discover pluralistic ignorance where it exists, by encouraging citizens to sincerely communicate their concerns to others without the fear of social sanctions. Once it is thus revealed, surveys can be used to confirm, and hence dispel, pluralistic ignorance.