How to know when won

A green banner will appear on most pages informing you of your win, as well as containing a link to your wins page with the feedback prompts and giver's information.

EDIT: Also, this is covered in the FAQ.

u will see a green bar appear that says congratulation u are one of the winners!

Clicky

Awki, Thanks ppl! :D

magic happens when you win.

There will be a parade down your street.

You can always check View Won

Let's just say... green will become your favorite color.