A staff member of University College Dublin (UCD) Confucius Institute teaches visitors to play Chinese chess during the UCD Festival in Dublin, Ireland, June 8, 2019. UCD Festival or UCD Open Day, an annual event designed to attract potential candidates from local students, was held here on Saturday. (Xinhua)

A visitor (R) tries to write Chinese calligraphy at University College Dublin (UCD) Confucius Institute during the UCD Festival in Dublin, Ireland, June 8, 2019. UCD Festival or UCD Open Day, an annual event designed to attract potential candidates from local students, was held here on Saturday. (Xinhua)

A staff member of University College Dublin (UCD) Confucius Institute demonstrates Chinese tea ceremony to a visitor during the UCD Festival in Dublin, Ireland, June 8, 2019. UCD Festival or UCD Open Day, an annual event designed to attract potential candidates from local students, was held here on Saturday. (Xinhua)