How to Connect a Wireless Mouse to an iMac without a Mouse

This is the fastest and simplest way to connect your Bluetooth Magic Mouse to your iMac without another mouse. The only assumption made is that you have a charge cable for your wireless mouse. I go full rant mode because I found instructions with the same title, but then showed how to turn on Bluetooth… Or, how to use a wired mouse to do it… Or, one guy even used another wireless mouse to do it! In my case, my gal had simply been using the mouse to work in our office, and the iMac and Magic Mouse forgot each other. So, I needed to figure out how to get them to connect when they both worked just fine. It was the most hidden piece of information on the internet. Well not anymore! Here it is folks! Just plug it in to the computer!