Those of you who are not to technical minded, you can create a simple link or drop down and add it to your site like any other link. No code editing, just create one simple link.
Chicklet Creator | Social Bookmark Link Creator
blogger free templates
the save your editting . Now if they press "Ctrl + u" they will only see a litle codes, he..he.. 
<div class='post-header-line-1'/>
<div class='post-body'>
<div class='post-header-line-1'/>
<div class='post-body entry-content'>
<b:if cond='data:blog.pageType == "item"'>
<style>.fullpost{display:inline;}</style>
<p><data:post.body/></p>
<b:else/>
<style>.fullpost{display:none;}</style>
<a expr:href='data:post.url'>Read More......</a>
</b:if>
<span class="fullpost">
</span>