Imagine a game in which you (as a player) don't see other players' character sheets, and you also don't see their dice rolls. All you know is whether they succeed or fail when they do roll dice.
Now imagine that you're playing a character with a low attribute, but you describe (and roleplay) your character as being exceptional in the associated areas...but with some kind of restriction or limitation. So you have Strength 6, but you describe yourself as being a hulking, muscle-bound brute, but when you were a child you accidentally killed your puppy, so you are hesitant to use your strength and went to wizard school. Or....well, you get the idea.
Then, in play, the goal is to maintain that illusion. Let's say the party needs to climb over something, so everybody makes an Athletics roll. (Maybe you're proficient in Athletics, maybe not?). If you succeed in your roll, you narrate how easy it was. If you fail in your roll, you get an astonished look on your face, as if the RNG gods have just betrayed you, and narrate some reason why you were just incredibly unlucky on that climb, and mutter something about "should have taken Athletics".
The thought experiment I'm pondering is how long you can maintain the illusion before the other players realize you don't really have a high Strength score that you're hesitant to use.
Would be kind of fun, and possibly illustrative.
