Simple! if post is shared execute this code!

hello
I dont know where case == success in the plugin script
I wanna put this code

<?php
$user_id = 12;
if ( !mycred_exclude_user( $user_id ) ) {
	// Add points and save the current year as ref_id
	mycred_add( 'birthday_present', $user_id, 10, 'Birthday %plural%!', date( 'y' ) );
}
?>

if user has successfully shared the post

http://wordpress.org/plugins/simple-share-buttons-adder/