Speech-act participant

Speech-act participant (abbreviated SAP) refers to 1st or 2nd person to the exclusion of 3rd person.

Example
Certain subsystems of a language’s grammar are sensitive to speech-act participants. (They do not distinguish between 1st or 2nd person, but contrast them both with third person (non-speech-act participant).)

In Sahaptin, the ergative case appears on 3rd person nouns only if the object is a speech-act participant (Rude 1997):

If the object is not a speech-act participant, the 3rd person noun may not be marked by ergative case:

Synonym
Local (e.g. Andrews 1985)

Other languages
German Sprechaktteilnehmer