It is a crucial characteristic of all ‘rules’ that they do not ‘determine’ action or behaviour in a ‘lawlike’ way, but require or leave room (potentially or actually) for ‘choice’. However, an individual actor must follow the appropriate rules if he or she is to be taken as
appropriately ‘doing’ particular types of action. Rule-following, then, is the action of an individual in ‘conforming’ to a rule and can be distinguished from ‘predetermined’ behaviour, such as drinking in response to thirst. The centrality of rule-following as the basis of human social structures is widely regarded as making human social systems different from most other kinds of system.