Captain Phillips was the captain of the Maersk Alabama in the real story. He was in charge of the ship during its voyage which unfortunately got targeted by Somali pirates.
Ruby. Because she is always eager to learn new things and is highly enthusiastic about combat skills. Her wide - eyed wonder at any new and cool skill would be really interesting to see.
She might immediately go to comfort him. Hinata has always cared deeply for Naruto, so seeing him cry would likely trigger her protective and empathetic side.
His reaction could be one of confusion. Fanfiction isn't really part of the pure - blood wizarding world he's used to. So seeing Harry doing something so different like cutting fanfiction would leave him scratching his head, not really understanding what Harry is up to or why he's doing it.
He could be secretly touched. Deep down, Snape has a complex personality. Even though he doesn't show it easily, the fact that Hermione, a bright and determined student, gives him a gift might reach his softer side and make him feel a bit of warmth.
Hermione could be defiant. She's not one to be easily intimidated. She might stand her ground and demand to know what he wants, all while using her quick wits to figure out his motives. She could also try to use the situation to her advantage, like gathering information from him about the Death Eaters' plans.