WordPress post meta if statement

gistfile1.php

<?php 
	// Perform the get meta inside the condition of the if statement,
	// it will return true if there's a value, false if not,
	// and if true the $meta variable will be set to the meta value
	if( $meta = get_post_meta($post_id, 'meta_name', true) ):
		echo $meta;
	else:
		// Do something else
	endif;
?>