Scream. And kick.
WWYDI a girl told you that she was Lucy Pevensie?
Be very suspicious.
WWYDI you were given Coriakin's book?
"Ooh, preeeeeeetty!" 😀
WWYDI you found out your friend had been magically eavesdropping on you?
Ask if they did it in Narnia.
WWYDI you were offered the chance to become more beautiful than the lot of mortals?
No thanks. Believe it or not, there are a few perks to not being particularly pretty. 😀
WWYDI you found a guinea pig nosing about your residence with a green ring tied to it?
Wonder where it came from.
WWYDI you were trying to keep a friend from falling off a cliff, but you fell off instead?
Pray that somehow I survive the fall by NOT hitting the ground and if not, that I would die instantaneously.
WWYDI you heard an animal trying to get your attention in a human-like way?
a) Sit up and pay attention. b) Wonder if animal in question's lip-shape was even capable of making human-like noises. c) Talk to it, because it can't hurt, right? A lot of animals can understand SOME human words anyway.
What would you do if you found a "magic" book - a book with moving images inside of it, with pages that didn't say anything until after you'd opened them, and stories you couldn't turn back to review once they were read?
Be transfixed by the moving images and irritated about not being able to turn back.
WWYDI you found an item in a second-hand store that had a label that read "made in Narnia"?
Buy. It.
WWYDI you found a normally locked door open?
Open to see what's inside (and if it was an evening and it was to a building of flats, try to lay down my sleeping bags hoping they will let me stay till the morning).
WWYDI asked to do sth your parents did not like, but which would be of great assistance to the one asking?
Refer to my conscience on that one, I suppose.
WWYDI a Narnian came to our world claiming that s/he is destined to be the next leader of your country?
Very much doubt his or her being sent by Aslan, since one really so would hardly be announcing it himself.
WWYDI someone claimed someone else had claimed such a thing, but the person himself had not said it (at least directly, even if things he says are accounted for by those saying he is claiming such a thing on the hypothesis of such a claim)?
That might depend on whether or not I thought that the person was inferring such a claim all along or not. Or upon the relationship that person and I have with the middle-man.
WWYDI you found out that Corin was a professional boxer in our world?