haptics handshake http://id.loc.gov/authorities/subjects/sh2003010820 https://en.wikipedia.org/wiki/Handshake https://www.wikidata.org/wiki/Q830043 A brief greeting or parting tradition in which two people grasp one of each other's like hands, in most cases accompanied by a brief up-and-down movement of the grasped hands. handshakes shaking hands hand