How to get an object id or name when clicked?

I have a live.button and want to know what its id or name is when clicked. The docs say I can assign a number, but this doesn't seem to work or I am doing something wrong; i.e. I only get bangs out. Any ideas? I know I can wire it up to another object, but that's not as elegant.

Update: another object Textbutton does exactly what I want.