Start with a square sheet of paper
Fold it in half horizontally, then unfold
Cut or fold the paper into two equal rectangles if needed
Fold each rectangle lengthwise to make two long strips
Fold each strip in half lengthwise, then unfold
Fold both long edges toward the center crease
Fold each strip in half again along the center crease
Make one strip into a left-facing shape and the other into a right-facing shape
Place the strips perpendicular to each other
Tuck the ends of each strip into the pockets of the other
Tighten the folds so the shape locks together
Flatten the center and adjust the points evenly