Another thing Aushra emphasized about being different about the two types is that while rationals seem to react directly and immediately to others' actions and words, irrationals have a moment of internal hesitation (sort of like an internal 'oscillation') where they wait for their internal state to react to the other person's actions/words, and then they react based on this internal state.

When irrationals speak they think less about the specific words they are using and think more about the image they are holding in their head. When rationals speak they seem to have more awareness of the words being said and attach greater meaning to them (again, this goes back to the previous things I've written).