I like a lot of older movies and tv shows, and I think about how a lot of the actors are likely dead now. Or if they are young characters, I think about how young they looked and wonder how they feel now looking back at these shows/movies where their youth is captured f
This is because you have to abandon comfortable assumptions and just feel stupid for some amount of time. It's why kids are so good at it. They're just constantly absorbing and don't care how they're perceived.