Things that are magnetic are attracted to metal. Also, people with charisma are called magnetic. If everything is attracted to you, whether you’re a refrigerator door or a rock star, you’re magnetic.
Magnetic literally refers to something that attracts metal, like iron or steel. Refrigerator doors are magnetic, so magnets stick to it. Also, someone who is very popular and attracts people has a magnetic personality. A powerful speaker who attracts many fans has a magnetic way of speaking. Magnetic people make you want to get closer, like you’re being pulled by their magical magnetic force. Both senses of magnetic have to do with attraction.