Phoenicia was an ancient civilization composed of independent city-states located along the coast of the Mediterranean Sea stretching through what is now Syria, Lebanon and northern Israel.The Phoenicians were a great maritime people, known for their mighty ships adorned with horses’ heads in honor of their god of the sea, Yamm, the brother of Mot, the god of death.
This is indirect characterization, because the excerpt does not explicitly say he was mad at his grandmother. Instead, it gives an implicit clue that he is via body language.