How would a twenty year old woman address Ryouga if they just met and
he has just given her his name? Likewise, how would he address her?

<many responses later>

Thank you both to those who responded and to those who, after seeing a
couple of responses, chose not to. I have the answer I need, and have
already incorporated it into my fanfic.
--
Ben Kosse bmk7411@cs.rit.edu
BGC Otaku and worshipper of the Red-Eyed Goddess. Member of ShAS.
Anime, RPG's, computers, poetry (read/write), music (listen/compose).
Author of the Bubblegum Crisis theme pack (see the homepage below).
Homepage with anime and other interests. (http://www.rit.edu/~bmk7411)