"Somethin' don't smell right," Jayne mutters darkly.
River smirks at him. The mercenary looks confused. He blinks, looking around him for the source of the smell. She giggles.
"What're you so happy for?"
"Flowers," she says, simply, and leaves it up to Jayne to figure out her meaning.
He doesn't. He chooses instead to glare at her, as if that will reveal to him the answers to the questions he hasn't actually asked.
This method doesn't shed any further light on the issue at hand; Jayne scowls. "Gorram ship better not crash," he mutters, and then he leaves.