For many decades, the question of setting up bilingual place-name signs accompanied the ethnic conflict between the German-speaking majority and the autochthonous Slovene-speaking minority in Carinthia (Austria). On the 10th anniversary of the 2011 compromise concerning the dispute about place-name signs, this article takes a closer look at the characterization of ethnic relations in Carinthia in the past few decades. According to a practice–theoretical empirical approach, the key to understanding this ethnic minority is the disappearance of the Slovene language. This article examines the manifold strategies used by young people to perform Carinthian Slovenian identity during leisure time in the context of, or apart from, cultural associations. With these strategies, adolescents actively try to react to the threatened disappearance of their language as they advocate for its preservation and ensure its enduring presence. The central role of the symbolic dimension of Slovenian language usage is striking. The social cohesion of the Slovene-speaking population must therefore be understood as performative ethnicity.