Step 1: Fold down napkin centrally.
Step 2: Fold napkin centrally to the left and turn it to the left by 45°.
Step 3: Fold up the lower corner. Take the upper layer only and leave 2cm to the edge.
Step 4: Repeat this fold with each layer and always leave 2cm to the edge.
Step 5: Turn napkin around, in order that the upper surface lies on the table.
Step 6: Fold right and left corner to the middle, in order that the visible lines are horizontal.
Step 7: Turn napkin around once again, in order that the upper surface lies on the table.
Step 8: Fold up the top corner.
Step 9: Fold up second corner into the pocket that is now visible. Repeat this step with every corner.
Step 10: You are done!