Maybe I should hire a craftsman to build me hats that are shaped like a question mark, an exclamation mark, and maybe a comma ?
Now THAT would be ... Um ... Break immersion of Real Life ?
Edit: I instantly like the "runes" approach ! It is something different ...
By the way, in PS:T there is Fell, who only talks through having signs floating over his head !
(Which, in fact, make up small riddles - that's his way of taling !)
