You need to paste all of this html in your page, make sure you do it as plain text and not visual editor.
<section class="widget widget_facebook-like-box clearfix" id="facebook-like-box-2"><div class="widget-heading clearfix"><h3><span>Facebook</span></h3></div><div data-stream="false" data-show-faces="true" data-href="https://www.facebook.com/NKPExpeditions" class="fb-social-plugin fb-like-box fb_iframe_widget" fb-xfbml-state="rendered" fb-iframe-plugin-query="app_id=&href=https%3A%2F%2Fwww.facebook.com%2FNKPExpeditions&locale=en_GB&sdk=joey&show_faces=true&stream=false"><span style="vertical-align: bottom; width: 300px; height: 271px;"><iframe width="1000px" scrolling="no" height="1000px" frameborder="0" name="f3e5889f085a1f4" allowtransparency="true" title="fb:like_box Facebook Social Plugin" style="border: medium none; visibility: visible; width: 300px; height: 271px;" src="http://www.facebook.com/plugins/like_box.php?app_id=&channel=http%3A%2F%2Fstatic.ak.facebook.com%2Fconnect%2Fxd_arbiter%2FLEdxGgtB9cN.js%3Fversion%3D40%23cb%3Df8b00df1f7b9fa%26domain%3Dwww.nkprojects.net%26origin%3Dhttp%253A%252F%252Fwww.nkprojects.net%252Ff2904fade2777a4%26relation%3Dparent.parent&href=https%3A%2F%2Fwww.facebook.com%2FNKPExpeditions&locale=en_GB&sdk=joey&show_faces=true&stream=false" class=""></iframe></span></div></section>
– Kyle
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