So, I have a cube that acts as a button. I'm trying to figure out how to create a particle system at a particular location (or activate one, that would be easier) with a click of that cube. Here's my code so far, I don't know what to do to create/activate the particle system.

function OnMouseOver() { //Make sure mouse is over the object

if(Input.GetMouseButtonDown(0)) //Make sure the object is clicked on

So, What do I do next?

Additional info: I've checked a lot of posts but i can't find anything.