1. If you are already using the official Blogger Sharing buttons, you should be already seeing the +1 buttons on your blog. If it is not, then go to that tutorial, and you will get the answer to how you can fix it.
2. No I don’t want to add that Blogger Sharing buttons, but would love to add the buttons somehow. If that’s the case, then read on..
3.Generate the +1 button code using the following generator.(The codes and the tutorial will be updated with the options that you make using the genrator)
4. Go to Blogger Dashboard >
Design > Edit HTML and click on the button which says “Expand widget Templates”. Look for
</head> and immediately above that paste
<script type="text/javascript" src="http://apis.google.com/js/plusone.js">
{lang: 'en-US'}
</script>5. Now look for
<data:post.body/> and immediately
below that paste
<div>
<g:plusone size="standard" expr:href="data:post.url"/>
</div>
6.Save the template, and you should see the +1 buttons on your blogger blog.