Camilla Duchess of Cornwall visits Elmhurst Ballet School

The video tutorial includes opening remarks and greetings, a discussion on signing and scribbling, interaction about exams and class dynamics, and concludes with final thanks and closing remarks.

What action does the speaker refer to when they say 'They want me to sign, scribble. It is.'?

What does the speaker imply by saying 'See this stuff back to us but back to exams.'?