Levi is usually either frowning or expressionless; that, plus his extremely calm demeanor, often makes it difficult for others to guess what he is thinking. He is not very approachable and rarely shows emotion, giving a cold impression to others and his manner of speaking tends to be very blunt or even insulting, and his comments are often coarse or inappropriate. He is not above belittling those who oppose or irritate him. His sense of humor tends to lean toward the vulgar, insulting and dark.