How to roll the trouser leg of jeans? Can you elaborate on it?

1. First, straighten all the trouser legs of jeans and keep them upright, which is convenient for subsequent rolling.

2. Then, fold the trouser legs of jeans inward from left to right.

3. Then, turn up the trouser legs of jeans.

4. Then, turn up the trouser legs of jeans.

Finally, roll up the leg of another pair of jeans in this way.