“…The speaker-dependent slopes for fillers revealed a more diffuse picture: about half of the speakers used more fillers in informal speech, whereas the other half used more fillers in formal speech. This may be explained by a difference in the function that filler words may have for different speakers (Aijmer, 2004;Götz, 2013;Hasselgren, 2002) or by speakers' individual speaking styles, which they possibly also show in their L1 (Olynyk, d'Anglejan, & Sankoff, 1987;Tang, 2015). For instance, the functions of the filler word like are manifold (e.g., Tagliamonte, 2011) and subtle functional differences in the occurrences of like in our data are conceivable: for some speakers, like may have mainly served pure time-gaining purposes, as in (11), whereas other speakers not only gained time and kept the communication channel open, but also enhanced the informal character of their speech, as in (12).…”