Fold the napkin/oral cloth in half first, and then fold the two sides into a W shape.

Fold back and forth about six times according to the size of the napkin/oral cloth.

Hold the bottom of the W shape upward with your hands. Pull the inner corner of each side outward to make it parallel to the vertical side at an angle of 90 degrees.

Fold the positions of the two ends, too. After folding, there are two rows of upright sharp corners from the middle.

Lay the folded napkin/mouthcloth flat on the plate. The flowers in the sky are ready.