Activism consists of efforts to promote, impede, direct, or intervene in social, political, economic, or environmental reform with the desire to make changes in society. Forms of activism range from mandate building in the community (including writing letters to newspapers), petitioning elected officials, running or contributing to a political campaign, preferential patronage (or boycott) of businesses, and demonstrative forms of activism like rallies, street marches, strikes, sit-ins, or hunger strikes.