Fold the paper in half, fold back, turn the paper 90 degrees.
Fold in half again and fold back.
Flatten the paper by pressing the left side down.
Fold the top down, as shown in picture two.
Open up the paper and flatten it.
Fold the left and right sides to the center, the top layer only.
Repeat on the other side.
Look at the pictures for the next folds (they are hard to describe)
repeat on the other side.