I am running a game of En Garde over on the RPG Stack Exchange. For purposes of verisimilitude, we're wondering about station-specific greetings in Paris in the 1630's. What would be an appropriate greeting between two low-class males with aspirations of climbing the social ladder? What would be a greeting from a low-class to a high-class (but non-titled) male? And what would be a greeting between two high-class gentlemen?
In general, a commoner would address a gentleman as "Monsieur" and a lady as "Madame". Among nobility the practice would be the same, although the king is addressed as "sire". If a person was a servant of someone else they may use a special term of subservience. For example, in the play Le Cid (1637) by Corneille, when the page addresses his mistress he begins
"By your command". This is because the page is the servant of the person being addressed. In the same play when Don Rodrigo addresses the Count, he says,
To me, count, two words. In other words "come to me, lets have a word or two". Don Rodrigo is below the count in status, but the two are close friends and well known to each other, so Don Rodrigo is informal.
In plays like "La Veuve" which takes place in Paris and is dated to 1632, the servants and workers are always addressed by their occupation ("nurse", "coachman", etc) and the gentlefolk as either "Monsieur" or "Madame".