"Oh! Um, okay!" She wasn't expecting the offer nor the swiftness of it, but once the surprise wears off, she smiles warmly. "I'd like that very much."

it sounds like the moon is very important to making charms. This is also one of the first times she's heard of runes, but before she can ask more about either, Runa has a question of her own. Unconsciously, she touches her wrist, then her neck, as she decides. "A, um... a bracelet," she answers finally. She doesn't wear much jewelry, afraid she'll lose the few pieces that she owns. Considering how much she fiddles with her sleeves, she'll notice right away if it has come loose or is about to slip off her hand.