As a Mechanical Engineer, I have to abstract everything - it's crazy.
But I've been doign a lot fo work with dialog and interaction.

I'm a believer in determining the emotion behind a person's general speech and reactions.

In other words some are Demanding, some are Probing, some are Inhibiting.

Then you can always look at how the person normally reacts or acts - in terms of dialog.

The emotion behind the speech is the subtext and beneath that is personality - in my theories.

Great post, Scott