This is called "The Grin."
"I saw it on the mouth of a plainclothes cop,
at the Norfolk airport running from the gate
to the taxi stand.
Made me his business.
A Black man bolting for an exit is a sweet suspicion.
Will you cooperate?
He asked.
It wasn't a question.
That was the first time.
When it happened again same circumstances, same face,
I realized the grin on it, barely held in check,
was his trademark.
He let me go.
See you soon, he said, to all of us."