Setting scenes on Halloween to indicate that something spoooOOOOoooky may be happening.
Spelling the word “gray” with an “e” sometimes, but not all the time.
Describing silence as “deafening.”
Describing children as “bent forward by the weight of their backpacks.”
Puns.
Using blonde hair as shorthand for attractiveness and brown hair as shorthand for mousiness.
Ending a story with someone falling or someone flying (this literally happens in all the stories I have revised so far oh my god what is the matter with me).