Itachi was calm and insightful, showing noticeable maturity for his age and knowledge on how to deal with every situation. For all his accomplishments, talent, and fame, Itachi was a rather humble man. Never arrogant about his own abilities nor underestimating others, most things he said would be unbiased and accurate. Both of you are males. He's part of the Akatsuki, a criminal organization and he massacared his clan and spared his brother.