<?php echo $this->getLayout()->createBlock('cms/block')->setBlockId('social-connect')->toHtml(); ?>
Looking at the above code you will notice setBlockId('social-connect') 'social-connect' is my Static Block Identifier name or BlockId, that I used when I was creating my static block.
Note: You can use this php code on any template file (.phtml).
I hope this article was helpful to you, please leave your question/s on the comments section below and I will do my best to answer back.