SeverinR
Vala
I have a take on this. What if you had two characters who were identical twins. Same upbringing, generally the same experiences, similar attitudes, etc etc.
What would be the one thing verbally that would differentiate one from the other if the only sense available to you was your hearing? As a writer you would need to think of that one thing.
I can only think of potentially two, timing and linked in with that, intonation derived from how they breathe between words, structuring their sentences accordingly. As a writer we can only apply pacing to the dialogue and perhaps that would be the difference.
What do you reckon?
They are identical and had extremely similar upbringing, so they would not have much difference in speech/dialog patterns, but they are two unique people. You would have to think of this when using their dialog. Usually one twin is more outgoing, one is usually the leader. They might even occasionally speak together as if one mind, but they would also have their own speaking style, very similar to each other but unique. It can be done, but you must make sure they are not two of the same person.