He is actually both a liar and a truth teller. He is like a top level poker player, you never know when he is bluffing, and I am sure it is a big reason for his

He is actually both a liar and a truth teller. He is like a top level poker player, you never know when he is bluffing, and I am sure it is a big reason for his success. Expect a lie, but no, this time, it is actually the truth. Expect the truth, but no, this time, it is a lie.