Mental Block!

I am now at that part of the story where the initial action (as in the chase and battle) has ended and there is some more in-depth dialogue with more subtle action.

I am struggling to illustrate how the dialogue might come out, and the body language and expressions of the characters.

I don't want pages and pages of the same expressions and poses. So I need to work out how to make sure the rest of the novel looks interesting and keeps the reader immersed.

I think I might need to move on with the story and come back to this, but I don't want to have to rearrange the later story if I don't plan out this dialogue properly.