A member of a particular linguistic community who, in speaking (and, indeed, in signing or writing), attempts to achieve a particular interactional goal or set of goals using particular linguistic and non-linguistic strategies. Interactional goals include attempts to elicit information or action on the part of the hearer, to provide information, to establish interpersonal rapport (for instance, when 'passing the time of day'), and so on. The linguistic strategies employed to achieve these goals might include the use of speech acts (requesting, informing, promising, thanking and so on), choices over words and grammatical constructions, intonation structures, choices over conforming or not conforming to discourse conventions like turn-taking and so on. Non-linguistic strategies include facial expressions, gesture, orientation of the speaker, proximity of interlocutors in terms of interpersonal space and so on.