Magic Tricks

I'm sad to say that I was very disappointed when I watched this explanation. I understand that it's a psychological effect, but I bought it because I wanted to learn how to do it as seen in the trailer, what failed to register at the time was that both spectators named a seven. And yes - it works as in the trailer if they pick a seven, but if they pick any other number, - then shuffling is involved, - NOT what I had wanted at all. Peter is no doubt a very clever magician, but the trailer is very misleading.