Proponents of new public diplomacy emphasize the importance of two-way engagement with foreign publics. Despite theoretical support for mutual dialogue, there is a lack of studies that examine the means by which governments and other actors of public diplomacy engage with civic stakeholders. Responding to this gap in the research literature, the present study introduces the case of Talk Talk Korea and critically examines how the Ministry of Foreign Affairs engage with foreign publics through online contests. The contest format has received limited attention in the research literature as a tool of political communication, despite being a popular platform among government agencies in South Korea. This study highlights the role of online contests in public diplomacy and examines seven rounds of contest participation in Talk Talk Korea from 2012 to 2018. Through examinations of both participation guidelines and user submissions, it is observed that the online format enables the government to steer direction of the dialogue, and to collect public views on topics of particular interest to South Korea. At the same time, it is argued that a contest premised on incentives requires particular attention to critical dialogue. The study concludes with a discussion of policy implications for two-way engagement in public diplomacy.