Perhaps they could pick up the Japanese train drivers pointing and calling: https://www.youtube.com/watch?v=9LmdUz3rOQU https://www.youtube.com/watch?v=9LmdUz3

Perhaps they could pick up the Japanese train drivers pointing and calling: https://www.youtube.com/watch?v=9LmdUz3rOQU https://www.youtube.com/watch?v=9LmdUz3rOQU Referring to things in multiple ways is supposed to have a more thorough confirmation, although not a good idea to point whilst wielding a scalpel.