2. Make two intersecting creases according to the following creases.

3. Fold the small rectangle symmetrically, and then turn the figure upside down.

4. Fold the upper half with the folded rectangle as shown below, and then turn it over.

5. Align the lower two sides with the middle folding line as the center.

6. Fold the following things into two symmetrical triangles.

7. Fold the upper and lower triangles together, like this. Don't press the crease yet.

8. Press out the crease here like this, and then insert the triangle above into the triangle below.

9. Fold the two small corners outside into a triangle.

10. Fold a part of the top angle below.

1 1, turn it over, and a heart will be made. You can stick double-sided tape wherever you want.