People who are good at greeting others
greet others first
Survival strategy
There are no weapons in their hands
To shake hands
there must be nothing in their hands

A person who greets well
kneels down and places their elbows
on their knees
They accept attacks
and express humility and obedience

A person who greets well
bows their waist
and exposes their vulnerable back
Thus, they gain wisdom
and lose danger.