You're holding a stack of folded together sheets of paper. Turn over the top sheet. Show the letter F. Put it on the table. The next piece, without turning, put under the bottom of the stack.
The next top sheet turn over. On it the letter O. Put it on the table next to the first.
The next piece, without turning, again, put it down and so on.
Do so until then, until you reach all the sheets. Now on the table is written: FOCUS. If the sheets are again folded in a pile and all to repeat, the effect is the same.
What's the secret? To letters preserved the order they need to be folded in a certain sequence. Letters from top to bottom in the stack must be put thus: f, C, O, Y, K.
Arrange so you can not only words, but also different figures. And you try to think of some trick with letters or numbers.