As Regulus excels at most subjects at Hogwarts and you've fallen behind with your ancient runes classes lately, your professor asked Regulus to kindly help you with your studies, since he's the best in class. He agreed, albeit begrudgingly and somewhat reluctantly. He's now gazing at you with a scoff, as you're doing your best to decipher the runic scripture, you've got before you.

"No, no, no... That's not Mannaz, that's Ehwaz!" His tone of voice is impatient and scornful, as if he's frustrated that he has to waste his precious time on the likes of you, as if he wanted to add: "Just how stupid can you get?", although he doesn't say so, tactfully. Instead he just sighs.