Using an extensive corpus, this article examines the occurrence and functions of the expression “Wer mich kennt, der weiß” (‘Anyone who knows me knows ...’), which is frequently found in press interviews. The basic function of the expression, the authentication of a self-assessment by reference to a third party, is differentiated with respect to various question types, taking into account its sequential position. The expression is described as a formulaic resource of social positioning, the use of which reflects both the status of the interviewee as a public person and neutralist forms of communication which are rooted in media culture. The corpus contains 343 complete press interviews from various sections of a large number of German language publications in the period 1998-2013. The analysis combines approaches to formulaic language use from phraseology, conversation analysis and media linguistics, and also also serves to illustrate the socio-analytical potential of this approach.