1) Make sure that the poles where the tape is to tied unto is stable and will not give up under pressure.
2) Tie the tape with a secure knot on each corners of the area which you would like to secure. Ideally, a least 4 poles or foundation bars will cover the whole perimeter.
3) If you need to lay the tape on a flat surface, then a double sided tape of equal or lesser width will be the neatest and most secure way of installing the tape.
4) For a higher visibility, you can put several layers of the caution tape to create a safe perimeter fence.