1.Log in to your dashboard--> desing- -> Edit HTML

2.Click on "Expand Widget Templates"

3.Scroll down to where you see this: <data:post.body/>
4.Copy below code and paste it just after the line <data:post.body/> .


<p><a href="http://www.blogger.com/follow-blog.g?blogID=YOUR-BLOG-ID" target="_blank">Follow This Blog !!!</a></p>



NOTE: Replace YOUR-BLOG-ID with your real blogger blog ID.
Look at the example below.

<p><a href="http://www.blogger.com/follow-blog.g?blogID=2450319500557625029" target="_blank">Follow This Blog !!!</a></p>


Result:

Follow This Blog !!!


5.Click on "Save Templates" and now you are done.