"If one studies the passage from language as a system of signs (langue) to language in its
intercultural and dialogic use, a change of perspective takes place because the theory of
social action is applied to the study of language, and this theory shows the two aspects of
linguistic behaviour: expectation, the social part referred to the langue, with its centripetal
character; and actuation, referred to the language, which is the individual part with a
centrifugal character. With linguistic actuation, speakers help cause events (agency), even if these are not wholly determined by their linguistic action. The social actor identifies in the situation a number of opportunities that he/she exploits with his/her action, the outcome of which feeds back into the diagnosis of the initial situation, either confirming or correcting it."