Sorry, but I found some errors on the previus upload, there is the correct one.
screenshot

first, uplaod the gif icon to your catalog/images folder


next:

on catalog contact_us.php

find:








after that,
add:



---------------
Finally:

on catalog/ includes/languages/espanol/contact_us.php

add before the last ?>

define('ADD_COMMENT_ORDER', '(Click) Metodo rapido para Contactarnos acerca de su orden');


and

on catalog/ includes/languages/english/contact_us.php

add before the last ?>

define('ADD_COMMENT_ORDER', '(Click) Quick way to Contact us about your order ');

---------------
ciao

More...