I used this process so Home component would know that outside my Nav component has been clicked. It helps that I have my nav inside my Home Component.
My Home component template:
<div>
 <nav-bar ref="nav"></nav-bar>
  <div @click="useHideNavMethod()">
So I use ref="nav" to use methods from the Nav in my Home component. This means I can use the hideNav() method (which resides in Nav).
I have purposely put the nav outside of this div with the click method, so anywhere clicked other than Nav would initiate the useHideNavMethod() function.
In my Nav component template I have:
<nav id="nav"> 
which is referenced when I use ref="nav".
So inside my hideNav() I have this.styleNavLi.display = 'none'; so it would hide the nav bar.
So all I need to do to use that method in Home is to use:
useHideNavMethod() {
 this.$refs.nav.hideNav();
}