should i do it?

He touched his brow,
the finger brushing
a bead of sweat
dripping down his face.
“I’m not so sure,”
he said.
“I don’t know, but
I’m not so sure.”
She shrugged.
The small movement rocked
a single speck of dust.
Her mouth twitched,
but she spoke nothing.
Neither was sure of anything
nor could ever be certain.
He mopped his face
with a handkerchief,
as she continued to weigh
the value of perplexity.