Copy this code and paste it in your HTML
<?php
include_once(ABSPATH.WPINC.'/rss.php');
$googleplus = fetch_feed("http://plusfeed.appspot.com/103329092193061943712"); // Replace 103329092193061943712 by your own ID
echo $googleplus->items[0]['link'];
echo '">';
echo $googleplus->items[0]['summary'];
?>