A greeting and thanks must always bow to bow heads bent down low where the level depends on the seniority of the other parties, but would not greet the public embrace. Unless to goodbye
A greeting and thanks must always bow to bow low levels which is based on seniority, but would not greet each other with a hug in public. Except for goodbye.
To say hello and thank you must bow bow bow low levels are always depend on the seniority of the other, but will not, say hello to embrace in public. Except to say goodbye.