Start at 21:20
They're only using facial expressions.
Daisy expression seems to be an "Eeeeh"
Kelly's expression seems like she's making a cringe-face
Anthony Daniels seems like a "wtf". Anthony even says "After 40 years, this is it?!?!?! What are you thinking?" But he doesn't actually know since he prefaces it by saying "How does it end?" so it's likely that it's a joke.
But maybe, I'm misreading. Might mean nothing at all. Come to your own conclusions.
The others are harder to read.
Just remember that people also said not to read too much to the expressions of Emilia Clarke reacting to season 8 GOT's ending.