Intracultural learning, building knowledge of one's native culture, is fundamental in developing learners into intercultural communicators. Integrating intracultural learning into the English curriculum could be a key to preparing English as a Foreign Language (EFL) students as cross-cultural communicators to people in non-English-speaking countries. The aim of this study was to investigate how assuming the role of local cultural material developers by making promotional YouTube videos helped EFL learners prepare to become socio-cultural agents to introduce themselves and their local culture to the world. Seventy-one participants were recruited from Multimedia English. Data included the students' concept-mapping worksheets, YouTube videos and final reflective oral presentations. Thematic analysis was used for data analysis. The results revealed that making YouTube videos helped EFL students to communicate aspects of their own culture, thereby enhancing their intracultural understanding and empowering them to take ownership of their learning. Practical implications and other issues were also discussed.