Well, I was wondering, since the internet and immediate communcation has burst onto the scene and is extremely popular, I wonder how many tricks you can perform to someone over an instant messenger such as MSN?
I think that everyone should list tricks that could be performed over instant messengers, so that we could perform tricks in totally different surroundings!

My trick would be one from David Blaines 'Mysterious Stranger', where you find out the card without even seeing the person! Anyone who has the book will know which trick I mean, (I think it's page 50).
Note: please be careful not to expose, but please share the trick descriptions to everyone
