Activism is any action undertaken in order to create change. It can be direct or indirect, but must always in some way disrupt the usual order of things, whether that's blocking a highway or handing out pamphlets on a busy street.
Indirect action is asking those in power to create change. ex. sign waving, petitions, lobbying. It only works if reason to believe those in power will listen.
Direct action is using the power you yourself possess to create change ex. most volunteer work, mutual aid, sit ins, strikes, occupations, protests, riots.
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