Safe and Sound
How to be found when lost on an Island
Any type of mirror is your best bet at making it out alive. You can use the reflection of the mirror to catch somebody's attention
Use smoke signals to show there are signs of possible life. The smoke will attract rescuers and are visible by planes flying near by.
Let out three yells with five seconds inbetween each one. These shouts can be brought to rescuers attention and can help you be found.
Whether it's marking trees or setting up bright objects in open fields, you are that much closer to being found. By marking the trees, rescuers have something to track making it easier to find you. The bright objects in an open field make it easy to catch the attention of people who could save you. Either way shows that there are signs of life.