I am playful; playfulness is a part of my amiable character.
There was a playfulness about her nips and a gentleness that prevented them from really hurting him.
He was a quick-tempered gentleman, and my playfulness offended him.
It may have been playfulness, yet the girl jumped up as if she had been stung by a wasp.
The very courtesy of his manner, the flavour of playfulness ...