Authors:

He looked down and did something quite out of character for him: he took hold of Shmuel's tiny hand in his and squeezed it tightly. "You're my best friend, Shmuel," he said. "My best friend for life.

John Boyne (2016). “The Boy in the Striped Pyjamas”, p.329, Random House
He looked down and did something quite out of character for him: he took hold of Shmuel's tiny hand in his and squeezed it tightly. You're my best friend, Shmuel, he said. My best friend for life.