mouseEnter and mouseLeave not working on ember?

I have a pretty simple component. Basically when I hover over it I want it to set the 'showTooltip' property based on the component to true, and when I hover off, I set it back to false. For whatever reason this doesn't seem to be working, and for the foggiest cannot figure out why (seeing as I have a click event on there too and that works fine as well). I'm runnimg Ember 2.8.

mouseEnter() {
 this.set('showTooltip', true);
 return false;
},

mouseLeave() {
 this.set('showTooltip', false);
 return false;
}