Does listening to a foreign-accented speaker bias native speakers’ behavior? We investigated whether the accent, i.e., a foreign accent versus a native accent, in which a social norm is presented affects native speakers’ decision to respect the norm (Experiments 1 and 2) and the judgement for not respecting it (Experiment 2). In Experiment 1, we presented 128 native Spanish speakers with new social norms, adapted from the measures imposed by the Spanish Government to fight the Covid-19 pandemic (e.g., ‘To avoid the spread of the Covid-19 virus, keep your distance’), whereas in Experiment 2, we presented 240 native Spanish speakers with everyday social norms learned from childhood (e.g., ‘Not littering on the street or in public places’), that have an intrinsic cultural and linguistic link. In Experiment 1, the norms were uttered either in a native accent, or in a foreign accent unfamiliar to our participants to avoid stereotypes. In Experiment 2, we added an accent negatively perceived in Spain to assess the role of language attitudes on decision making. Overall, accent did not directly impact participants’ final decisions, but it influenced the decision-making process. The factors that seem to underlie this effect are emotionality and language attitudes. These findings add up to the recent Foreign Accent effect observed on moral judgements and further highlight the role of the speaker’s identity in decision making.

Literature has shown that foreign-accented (FA) speech modulates the degree of irony perceived by native (NA) individuals, but the subsequent consequences it may have on social interaction are unknown. To address this question, we presented Spanish first language (L1) users with written contexts with ironic/literal praises allocated to either a NA or a FA speaker. Written modality was used to avoid disfluency and to examine the impact of expectations of non-L1 comprehension on irony processing. For each of the 104 contexts, participants had to (1) assess the degree of irony of the speaker's praise inserted in the context, (2) assess the speaker's level of friendliness and (3) indicate the level of correctness of the response given to the ironic/ literal comment. Results indicate that the speaker's identity modulates the degree of perceived irony as well as the perceived appropriateness of the responses given to ironic comments, even when the accent is not experienced. The theory proposed to account for the findings is that the expectation one has of a foreign individual's speech affects language processing that leads to misinterpretations, which may, consequently, deteriorate social interaction between L1 and LX users.