A nice example of this is the face actor of Dina in the excellent game The last of us part 2, made by Naughty Dog. ND is imo leaders in many game things, including facial animation. The characters are in-game really expressive and the animations are really smooth.
Anyway, Cascina Caradonna ("Dina" in the game) recorded herself playing the game. This [0] is when she sees "herself" for the first time. (Spoilers? If you watch the video from the beginning there are spoilers for the first game, which is equally fantastic, but the video is no real spoilers for p2. It's in the very first minutes of the game). Love the reaction.
[0] https://youtu.be/fWvr3fhTqnQ?t=1424
Edit: lots of people dislike the game/ND/ND director, and that's fine, their choice. I like the game and that's fine too.