As I'm writing, I find myself getting a little stumped on small details. One detail is how a person (typically young) would address an adult. Now days we'd address a man as 'mister' and a woman as 'miss, mrs., or ms.'. I was curious if they did this in medieval times as well. I know, there was 'sir' for knights, 'lord' for lords, 'master' for a child or how an apprentice would acknowledge his master of trait. But how would a "commoner" address another "commoner"?