Give the most horrible, horrible, horrible idea possible!!!
GIve a pretty good idea...
Give an idea, but...
Give the most good idea you can think of, but tell them whatever idea is fine, because the party will always be fun!
Not pass it on, even though you don't even know the victim at all!
Think about passing it on, but don't.
Think about passing it on! After all, who says he'll ever know?
Pass it on, to TEN people!!! When the person finds, it'll already be too late, anyways!!! Mwahaha!!
Tell them to mind their own business and that it wasn't like people went up to them and asked the same question!!!
Tell them nicely that it was none of their business and walk away.
Tell them immediately so you can join the populars.