Public speaking 77 Self-presentation 62 Interpersonal communication 58 Study and teaching 49 English language -- 40 Politics and government 38 Speeches, addresses, etc 37 more ... Foreign relations -- 35 History 30 Management 30 Courses -- 25 Economic conditions 22 Foreign relations 22 Closing ceremony 18 Communication 18 Management -- 17 Spanish language -- 17 Description and travel 16 Leadership 16 Negotiation 15 Global economy 14 History -- 14 Politics and government -- 14 Farewells 13 Television broadcasting of news -- 12 Budget -- 11 Diplomatic training 11 Business communication 10 Etiquette 10 German language -- 10 less ...