He looked down at the onions in his hand and scrunched his eyebrows together.
"Do I use a wand or a knife?"
He was trying to remember. It seemed like his mom used her wand, having a dozen things going at once, but then also had things being done by hand. He didn't know which would be better. He looked at Luna helplessly and shrugged slightly, unsure how to start.
"Which is better?"
If if had been Potions class, he would have used his knife. But he didn't have his own. So he asked again, "Can I borrow a knife, if I should use that?"