You’ll need a stool and some Youth Leaders.
Have a youth stand on the stool. Demonstrate that with a little effort, if the person stands alone, you can knock him/her off the perch. Put the person
Ask the group what you can do to keep yourself in position when you Stand in Holy Places. Scripture study, Prayer, Good Friends, etc, will be common responses. Have the responders come up and stand around the person on the stool representing each topic. After the person is surrounded, ask a priesthood leader to come up and defend the stool. With all these things in place, you can effectively stand in holy places and be protected from the world. When one is missing, there might be an opening for Satan to ge through.
Open a discussion on how priesthood and other leaders, parents, scriptures all help us maintain our footing and keep us in Holy Places.