When a horse is running, if the hairs on the back of their neck are long, they "float" in the air.
What is the better word for "float"? I cannot think of any, and I cannot find a suitable search string on the net.
I have in mind also "flutter", "wave", but they seem equally bad.
Does the same verb apply to the movement of the tail hairs, as well the hairs of a person with long hair?
Side question: does the same verb apply to a flag in the wind?