So, have you got a signature like mine on your blog already?
In order to add a signature to your blog you will first need a signature. There are several sites where you can make one.
One that is popular among bloggers is: http://www.mylivesignature.com/.
The site will take you through the process of making the signature.Once you are done creating the signature you can use their code.
You can get the html code to put into your blog.
This is how you do it :
Copy your signature's HTML code
Log into your blogger account
From your Dashboard choose 'settings'
Scroll down to where it says 'post template' to the left of a text box
Paste the code into the box
Now, each time you click on 'new post' to write a post you will see your signature is already in place!
Easy isn't it? Go try it!