...Too many to make a conversation for each one.
Stefan: Hmmm, I believe we haven't met milady. The names is Stefan, yours?
Sophia: I'm Sophia, I come from Elibe.
Stefan: Elibe, so over there people like us live too.
Sophia: People like us? What do you mean?
Stefan: The union between a laguz and beorc, we're called the Branded. We possess special skills others don't do. Your commader is one too.
Sophia: You mean Lord Roy? But how...
Stefan: I just know how to identify them. Anyways, a pleasure to meet you milady. Hope we meet again.
Sophia: Wait! I would like to know a bit more of what you said.
Stefan: You and your friends should come to the Grann Desert in Begnion. There I can answer any question you have.
Seth and Geoffrey would be more like conversations of how both do anything to protect their lords, the knight's way and maybe their feelings for their princesses.
Eirika and Elincia much like above, but the despair they felt when leaving their countries, their return to save their people, and maybe how they fall in love with a knight or citizen.
Clarine and Kieran would be funny, since Kieran would be trying to prove he's better than Clarine's brother.
What if M!U could be recruited by the Assassins, persuaded by Katarina?