What would you do if you were stranded on a desert island?

If I were stranded on a desert island I’d hunt animals like fish and I’d look for different fruits.
If I were stranded I would build a small house using wood and large leaves of a tree. I’d catch water and save it in the bamboo. I probably would try to make a fire for warmth at night.
I’d develop special weapons for hunting and for helping me against predators.  
If the rescuers spent more than one week, I would make a great bonfire and write help using big trees.