Step 4: Chemical Light Stick.
The human eye tends to notice things that are perfect. Whether it be a perfectly straight line, or a perfect circle. This is because nothing in nature is perfect. With the light stick, you will tie about 8 feet of fishing line, or cordage to the end of it. Then simply spin it in a circle. This creates a bright perfect circle, which at night, can be very useful for signaling. This technique is done by the special forces, and the helicopter pilots can see them very well.