How to make origami bookmarks:

1. Prepare materials: a rectangular piece of cardboard and a pair of chopsticks.

2. Place the cardboard on the table, place the chopsticks in the center of the paper, and use the chopsticks to press a crease.

3. Fold one corner of the paper toward the crease to form a triangle.

4. According to the size of the triangle, fold the other three corners toward the crease.

5. Turn the triangle over and fold it down along the edge of the triangle.

6. Use scissors to cut one side of the leaf into a streamlined shape.

7. Fold the bottom of the leaf.

8. Use double-sided tape to glue one side of the leaf.

9. Write a name or poem on the bookmark and insert it into the book.