Personally I give each character a face, either from a person I know who matches their personality or a celebrity that fits the description, even though sometimes it can be really annoying if the author gives more details on the persons appearance and my character doesn’t fit that lol. I’m very curious as to what other people do.
Same. They’re blurry to me if I try to picture them.
But if it gets a movie adaption you know if the actor looks like them or not. Teaching To Kill a Mockingbird, then watching the movie, always resulted in the students saying “That’s not what Atticus should look like.” Everytime.