1. Determine the position of the ribbon: the ribbon of the security suit is usually worn on the left shoulder, but the specific position may be different for different companies and regions. Security guards need to know the company's regulations first and determine the correct position of the ribbon.

2. Adjust the length of the ribbon: Security guards need to adjust the length of the ribbon according to their height and shoulder width to ensure that the ribbon can fit the shoulder smoothly, not too tight or too loose.

3. How to wear it: thread the ribbon obliquely from the right shoulder to the left shoulder, and then buckle both ends of the ribbon on the left shoulder. Security personnel need to ensure that the ribbon is evenly worn and will not be skewed or twisted.

As for the method of tying the belt, you can refer to the following steps:

1. Fold the tape in the middle and then fold it in half.

2. Place the belt on the buckle of the belt, and then put down the folded belt.

3. Put the tail of the belt up and press the four corners of the belt buckle with the thumbs of both hands.

The above information is for reference only. Please consult relevant professionals for specific methods.