Square paper, folded in half as shown in the figure.

Fold in half as shown.

Flip as shown in the figure

Fold as shown in the figure, and gently pull to both sides as shown in the figure.

Pull it up and fold it into a small square, and then unfold it backwards.

As shown in the figure, the upper layer is folded upwards.

Fold it up a little as shown.

Fold up along the crease as shown in the figure.

Turn around, unfold, and retract along the crease.

The other side is also folded back, as shown.

Fold as shown in the figure, and the other side is also folded.

Fold, unfold and put away as shown in the figure.

On the other hand, fold it back in the same way and draw an expression.