Method 1:

1. Fold one end of the belt outward, as shown below.

2. Wrap the other end of the belt around the folded belt as shown below.

3. Tuck the wrapped belt into the loop created in the previous step.

4. Tighten the bent ends of the belt to complete the knotting of the belt.

Method 2:

1. Fold one end of the belt.

2. Circle the other end of the belt around the folded belt.

3. After three or four turns, pass the end of the belt through the gap and tighten it to complete the knotting of the belt.