Along with bowing, we Japanese often (or rather, always) say “Domo, domo”.
Do-mo [do-mo] is one of the strangest words in Japanese.
You can use it both positively, negatively, questionably, thankfully, and at almost any situations.
The origin of the word Do-mo may be from “somehow”.
For, “Do-” means “how”.
You can use it when ….
..you receive something.
…you bump into somebody.
…you want to apologize.
…you want to show your appreciation.
…you are asked about your health and you don’t want to answer it.
Thinking about it, Do-mo may be close to English word “well”.
A magic word.
Show your feeling
By hiding your thoughts.