Every time a protester is arrested and taken away there's a huge racket and a chorus of "we love you!" and then another person sits down and takes their place. The man in a suit at bottom left has just replaced an arrested protester.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/bowbrick/">Steve  Bowbrick</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://flickr.com/photos/bowbrick/40663871803/">Police making another arrest by the glorious pink boat - Flickr</a>