Answer:
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
I have four wings but cannot fly. I never laugh and never cry. On the same spot always found, toiling away with little sound.
It's anything but amusing when this body part gets hit.
What covers its face with its hands, speaks no language, yet most known what it's saying?
What has a single eye but cannot see?
I have two eyes in the front and a lot of eyes on my tail