supporting of language by expressing agreement and disagreement, approval and refusal or acknowledgment and denial (Ekman, 1979; Horstmann & Ansorge, 2011; Jakobson, 1972; Morris, 1979; Poggi, D'Errico, & Vincze, 2010; Wagner, Malisz, & Kopp, 2014). However, despite their relevant functions...