>people say this is a mask, but I say it's CGI
Why not both?
https://www.vocativ.com/culture/fun/meet-man-behind-gif-broke-internet/index.html
https://www.dazeddigital.com/artsandculture/article/19532/1/this-is-what-is-actually-going-on-in-that-emma-watson-sofia-vergara-gif
https://www.youtube.com/watch?v=VfEi60YPGEg