This paper focuses on presenting a theoretical framework of the sociolinguistic phenomenon called code-switching, bilinguals’ habits of using that speech tool in their communication, and their opinions regarding the phenomenon. It also provides an insight into previous research on this topic. For the purpose of writing this undergraduate thesis, a small-scale study was conducted to discover more about code-switching within a specific group, Croatian immigrants in Canada. With this study, attention was drawn to the participants’ personal experiences with code-switching and their attitudes towards the use of this phenomenon. It was found that the study's participants, Croatian immigrants living in Canada, frequently switched between languages in casual contexts, mostly thought that bilinguals frequently employed codeswitching as a communication strategy, and were predominantly concerned about maintaining their cultural heritage. However, they mostly did not believe that English was a threat to the integrity of the Croatian language, nor did they predominantly feel uncomfortable when they communicated in English instead of Croatian.