How do I Add Padding to a Button

I am using a sprite to create a play/pause button, but I want to be able to tap the button when I am outside the bounds of the sprite. How can I add a padding to the button?

For Example, I if I created the button below, with the "Hello World" text as the sprite; I would like to be able to click the actual sprite and the padding around it to activate the button.

Just create or draw a transparent or invisible sprite. Set it's polygon to bounding box so the full area responds to touch or click.