Speakers tend to align to the lexical choices of their interlocutors (i.e., repeat the same word as previously used by the interlocutors), a term referred to as lexical alignment. While alignment is argued to contribute to mutual understanding and ultimately to successful communication in native-native interactions, it is relatively unknown how interactions involving a non-native speaker may influence lexical alignment. Using behavioural and EEG methodologies, we will investigate whether social factors (e.g., negative/positive stereotypes conveyed by a foreign accent) reduce/increase native speakers’ willingness to align to foreign interlocutors. We will also examine whether reduced alignment may be due to native speakers’ willingness to help foreign speakers improve their lexical knowledge. The findings will shed light on the social and individual factors (e.g., empathy, cognitive flexibility) that influence social interactions.