Just click the green flag and wait. When you are voting there are 5 stars, For example if you vote 4/5 the forth star is going to change color and that is how much you voted. Also comment how much you voted.
To see how i made it see inside. Embed Code: <iframe allowtransparency="true" width="485 height="402" src="http://scratch.mit.edu/projects/embed/41263300/?autostart=false" frameborder="0" allowfullscreen></iframe>
