Firt get your piece of paper ready, since the paper I'm using isn't in a square shape you will have to get one of the paper corners and fold it until the one on the opposite side is nice and pointy, now crease it.

Now you fold the leftover bottom paper up to the line of where you folded it. Now cut the rectangular paper off, unfold the triangle and there's a square.

Now that you have a square fold it into the middle, make sure it looks like a Triangle!

Do this with all 4 sides.

Flip it over without disturbing the flaps and do the exact same.

Now fold it together so it looks like a rectangle.

Now just go wild and decorate it and share it with your friends!!!