One of the core missions of the Devawongse Varopakarn Institute of Foreign Affairs is to provide academic services to government officials and public sector personnel in order to enhance their English language proficiency for work in international affairs, particularly on the international stage. As part of this mission, the Institute offers the Oral Communication Course (OCC), which focuses on developing English language skills for presentations, public speaking, and basic participation in international meetings. The course combines theoretical learning with practical training to ensure that participants can apply their newly acquired skills and knowledge effectively and confidently in their work. The training took place from March 4 to March 31, 2025, with a total of 120 hours. The course numbered 26 participants, at the Professional level or higher, from 18 government agencies.