The following article attempts to characterise the current changes in the communication of people living in the area of Polish-Czech borderland based on the results of the study conducted in 2018 and 2019. The aim is to determine the dominant mode of supranational communication, as well as the reason behind its prevalence by analysing the language skills of the interviewed Poles and Czechs, along with their language preferences and selected personal experiences. The multilingual modes known as English as a "lingua franca" and "lingua receptiva" as well as their combination, constitute a platform of reference. The analysis proves that in more peripheral areas of the globalised world where different languages and cultures cross, postmonolingual practices have been developed. They maintain the leading position of the first language but they also adapt other multilingual modes. It is suggested that these practices should not be treated as a transitional phase on the way to rich multilingualism but rather as a specific glocalisation effect.