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All the presidents’ handshakes: world leaders reach out to meet and greet

World Hello Day is observed annually on November 21 to express that conflicts should be resolved through communication rather than the use of force

November 21 is World Hello Day. The purpose of World Hello Day is to express that conflicts should be resolved through communication rather than the use of force. World leaders clearly understand the importance of personal communication in preserving peace. See how world leaders greet each other in this photo gallery.