*I hate it when girls fall madly in love with a boy after meeting him like once.
*Anything that is remotely close to Twilight.
*If I can guess how it's going to end within the first few chapters.
*Too much blood and guts (with the exception of historical fiction and Game of Thrones. Those are pretty essential.)
*If the teens don't act or talk like normal teens.
*If I feel dumber after reading.
*I'm done with werewolves, vampires, angels, demons. I'm ok with fairies, though.
*Stuff that should have been caught in the proofread (misspellings, repetition, run ons, etc).