Comment REACTIONS, they make me laugh.

-You're in the middle of a demigod battle and two of your favorite characters are protecting you.
Kat: I'd get my arm chopped off...

-You're in your house dorm.
Kat: I'd freak out then get in trouble for pranking and practicing magic outside of class...

-You're in the Box
Kat: I'm afraid of closed spaces so I'd hyperventilate and start cursing out that shuck-faced Box.

-Waking down the street on a normal day and you spill (insert favorite hot drink) on Artemis Fowl.
Kat: I'd apologize and introduce myself as Potassium, then Candy Bar, continuously stuttering.

-Its a normal day until weird thing starts happening and you're favorite doctor (9,10,11 or 12 [or 1-8 if you're a classic Whovian, which, if you are, kudos to you for originality]) grabs your hand and says. "Hello! How are you? That's nice, yeah well I'm the Doctor and run for your life."
Kat: I'm not sure if I'd just stand there silently, end up dying, make a sarcastic comment, or all three.

-You find out you now live across from 221B Baker Street
Kat: I'd cheer then try to one-up Sherlock with trivia knowledge...

-After a few attempts and burned toast, you realize you have superpowers.
Kat: I'd end up breaking something.

-You literally just woke up with your favorite characters from every fandom staring at you concerned.
Kat: I'd pass out again.