what would you do if you were trapped on a deserted island?

First I would try to figure out where is the location of the island. If it's near the land, I may try to swim back to land. If it's near path of ships, I may try to prepare things to make signals. If it's in the middle of nowhere, I would find fresh water sources first, then try to find sources of food or tools that can help me get foods. I would dig a hole and hide myself from sunlight, and the hole may collect rain water. And I will start to pray to the God.