[quote=@Cannon011]
[@Scout]I get that... But most RP interactions are more than just one reply, yes? How to I respond to their rrply, and so forth.
[/quote]

In character, the standard means that isn't chaotic is to simply start typing your response and either @mention the involved players and/or mention the characters involved in the interaction.

RP interactions, generally speaking, are a continued story, and your response is a small progression of the timeline from your character's perspective. You don't necessarily need to do the quote gig, especially if it's a 1x1 RP, where you simply continue the story back and forth in a line of posts.

Assuming I understood the question.

It may be helpful to go to a forum and read a few posts in an RP to get an idea of how the layout works.