"No, ma'am," Aimery answered as he stood up from tucking a present underneath the table, brushing the tablecloth back into place. He smiled at her warmly, gloved hands clasped in front of him, "They're for those who are without a costume for whatever reason."

He wasn't going to interrogate anyone as to why they might need the mask. Maybe they were poor or illiterate. It didn't matter, so long as they had fun and didn't make trouble. After a brief pause he tilted his head slightly, eyebrows raised under his mask (he kept forgetting they were hidden), "Those with costumes are welcome to try them on though, if they like."

Meaning, he wasn't suggesting she needed a mask, but he wouldn't slap her hands away from them either.