"Really?" It reminded her a bit of the spell Hermione had put on their coins for the DA. "Some sort of augmented Protean charm then? With wards?" She looked at it with interest, reading the explanation as she took the journal out of his hands. It was with with red, orange, and yellow polka dots.
"Well, in that case I'll have to fill it and maybe buy a second," she teased. "Because you know I have nothing but hot dates night after night."
It would be a good way to communicate, and obviously people were liking the idea.