I NEED HELP!

I've created an actor which I want to make into a button, and when pressed, rolls or moves a ball actor I have and I can't figure out how the hell to do it and it's really bugging me because it's like 'Come on! All I want to do is make my ball roll by pressing the button!!'.
If anyone can help, I couldn't describe my appreciation.
Thanks in advance
If anyone can help, I couldn't describe my appreciation.

Thanks in advance