In A New Hope, C-3PO introduces himself to Luke: THREEPIO: I see, sir. LUKE: Uh, you can call me Luke. THREEPIO: I see, sir Luke. LUKE: (laughing) Just Luke. THREEPIO: And I am See-Threepio, human-cyborg relations, and this is my counterpart, Artoo-Detoo. (Source: https://imsdb.com/scripts/Star-...