I’ve seen that by body language experts. If you say “yes” but are shaking your head no, the answer is no, according to them.
I thought the amused smile while MTG was pointing out her affiliations was more telling. It reminded me of Hitlery, smiling after my favorite line, “Cause you’d be in jail.” She smiled because she thought it was make her look above such a silly remark. Wrong. She wasn’t about to comment, and smiled to avoid it.