Listen:
We're sitting in a classroom in one of the breaks with other people. So I get me a deck of cards, shuffle it, tell the guy sitting next to me to pick the top card and memorise it. Obviously without showing me. He does so, gives the card back, I shuffle the deck for some time. Then I flop the top and bottom cards, and ask him if either one is the one he picked. He gets surprised, says the bottom card really is the one he picked. I go into epic lulz.
You see, what happened is this: I did exactly what I described. No tricks, no fancy-schmancy way of counting the cards... nothing. I just left it up to sheer luck. I had a 2/52 chance that it works... and it worked.
Laaaaaaaaaaaameeee...
Otherwise, I'm not really a lucky person. Lots of bad things happen to me and those I see around me, and really good things are few and far between. Or maybe I'm just a pessimist, willfully ignoring the positive. Ah well.