1. Fold the handkerchief pair into a triangle, and then grab a corner with both hands.

2. Then, move the two corners to the back of the neck.

3. Cross the handkerchief in your hand at the back of your neck and turn it into an angle with one hand.

4. Cross the two corners of the square scarf in front of the neck and tie the knot.

5. Tie the second knot (the second knot should be loose so as to untie it).

6. Finally, put the knot behind the square towel on your chest, and the square towel will be fixed, so it will be knotted.