What did Ms. Vertenstein do while her students performed in their virtual recitals? Why did she do that? What does this action tell you about her

Hi. Did you forget to say that this question is about the article "A 92-Year-Old Piano Teacher Won’t Let Students Miss Bach in the Pandemic"

Explanation:

The article talks about Mrs. Vertenstein, a piano teacher, who had to stop receiving her students because of the coronavirus pandemic.

Mrs. Vertenstein did not like to interrupt classes, and did not like even more having to cancel the concert she was organizing for her students, so she decided to do it all online through livestreams apps.

At the time of the online concert, she turns off her camera, although she can hear and see all the students, she does it so that the students do not see her expression, while they play and are worried and sad to think that she may not be enjoying it of their performances. This shows that Mrs. Vertenstein is very concerned with demotivating her students, so she prefers that they just listen to her and don't see her.

the eye wink at the hand; yet let that be / which the eye fears, when it is done, to see.