you are never gonna guess what made me look up "why would you hand-shake with your left hand" -
Discussion
"scout" - and they all took her hand with their right hand. "only the bravest drop their shields and shake with the left hand". and she was his teacher.
as i said: the fleur is a neo-nazi symbol. "scouts" and "head hunter" and "validator" and "camper". same same.
except trump. mr trophy hunter. 
never mind - right hands. they all took the left handed greeting with their right hands.