Starting from the analysis of corpus of student’s private language which shows the inescapable presence of the listener in the utterance, the paradoxical communicative role of the speaker and listener of himself is evaluated, as well as the extent of self-referentiality in the process of signification. The different forms and possible figurative frameworks of private utterance that emerged from the examination of the collected cases also reveal themselves to be operative during the use of socialized language. The interactivity of language thus extended draws a new model of communication and highlights how the subject’s ability to refer to himself, in private and socialized language, is at the basis of reflexive metalinguistic processes.