Magnets are objects that produce an invisible moving electric charge known as a magnetic field. These objects can stand on their own, such as refrigerator magnets, or be part of another item, such as the magnets found inside of your cell phone.
When you think of the word "magnetism," you should also think of the word "attraction." Magnetic objects can't resist the pull of other magnetic objects that contain the opposite pole. It's a natural reaction – kind of like the attraction you feel toward certain movie stars.