Please follow this link on how to make a product featured : <a href="http://docs.woothemes.com/document/managing-products/#featured" target="_blank">http://docs.woothemes.com/document/managing-products/#featured</a> and here is the shortcode : <code>&#91;featured_products per_page="12" columns="4"&#93;</code>
<div class="inner-top-xs">[featured_products per_page="12" columns="4"]</div>