1.
pa-
‘body movements’ to stoop; to bend over; to duck
down as in going under a low door-way or as in ducking from a flying object; to bow the
head.
When passing in front of people, especially when having to go between people, one should bow his head, hunch forward, and
place the palms together at the chest. This courteous posture is polite and says in body language "I am sorry I must go in
front of or between you".
Hey! You duck down under the house.
Bend down under the house and you will not run into anything.
When you pass, bow down in front of people.