I mean no disrespect, I am genuinly curious.

Hello,

I was wondering whether someone who covers their face would be able to properly communicate in BSL given the importance of facial expressions. How severely compromised would their ability to communicate be for example?

I'm starting a level 3 course soon (after a few years off from classes) and since it's quite heavy on Deaf culture/history/linguistics etc. I'm wondering if anyone has suggestions for books/videos/other stuff that may be helpful for level 3?