Now if you want to understand his bows, or bow to him:
https://interacnetwork.com/bowing-in-japan/#:~:text=Depending%20on%20the%20situation%2C%20a,%2C%20respect%2C%20remorse%20or%20gratitude.
"Unlike in western culture, bowing in Japan, known as ojigi, is an important etiquette that is learned...