Did you know that of all the people who own an iPhone, only three percent use all its features? Actually, we just made that statistic up. However, your iPhone does have a ton of cool tricks that few people know about. Master those and wow your less tech-savvy friends. 1. Pay for Dinner With Your iPhone While your gang is rummaging around in their wallets, you put out your hand with your iPhone, and the check is paid as if by magic. It might not be magic, but Apple Pay is safe and more convenient than you might think.