How to a spray a symbol into random locations and

I'm trying to spray some leaves that I have added to my symbols on my canvas, But they end up being sprayed all in the same direction, I want them to be sprayed randomly not all in one direction as the first original leaf, Basically I want to get such a illustration:

http://cdn.tutsplus.com/vector.tutsplus.com/uploads/2013/09/hedgehog-4 5.png

How can I do that?