Finnick holds back his joke about the rope intentionally not being long enough for sex or tying nooses. He knows Night Sky wouldn't like a joke like that, especially not at a time like this. Instead, he smiles softly.

"Not this time, sweetness."

He shows her a basic knot, not the most basic overhand knot that most everyone knows, but one less known but still simple enough to learn easily. He explains it step by step, demonstrating with his rope, then looks to hers to help her with her attempt.