1. To add a Follow Me Button to Blogger, you need to find big Facebook, Twitter and RSS icons.
   
2. Download it and upload it to Google Picasa or Flicker (whatever picture uploading site you use).
   
3. Open a word document and paste in the following code:
   <a href=”http://www.facebook.com/yourpage” target=”_blank”><img alt=”Facebook Page” src=”http://yourpage.com/uploads/2012/10/button1.jpg” width=”20″ height=”20″/>
4. Your feed address may be something like this:

   http://your-blog.blogspot.com/feeds/posts/default

   To find your feed address:
   

5. Open the picture you uploaded.
   Right click on the picture, and click ‘Copy Image URL’
   Paste the URL into the code.
   Yes it should look like a long and weird URL address.
   To find your uploaded picture web address:
   Go to the website where you uploaded your pictures. (if using google picasa – go to google photos.)
   
6. Do a separate code for each of your pictures.
   Remembering to change your Subscribe To wording for each one.
   The target=”_blank” means that it will open in another tab
   The  height=”48″ width=”47″ means the size of the logos on your blog. You can adjust these to be bigger and smaller.
   
7. Line up the codes in word so they are one after the other for adding to your blog. As you want this all in one gadget.
8. Now go to Layout:
   Add a Gadget tab and add a “HTML/JavaScript” gadget.
   
9. Paste the codes.
   Click Save.

Have a look at your blog. Do they appear? I hope so!

Unfortunately I do not know how to do this on WordPress or any other blog hosting site! 
But I would assume the concept is the same – or use a plugin/widget.