How do I enable Facebook's Like and Share This icons on my products?

Embed Facebook Like and Share buttons on every product page on your site:

1. Go to Marketing > Social Media.
   
   
2. Select the radio button for Format 1 or Format 2 (See below for differences), and click Update.
    
   
   

Once the module is enabled, it displays popular share buttons on your product details pages. 
The module gives customers the ability to Like your products and Share them in a single-click right to their personal Facebook profile page and their friends' news feed. It gives your customers the ability to share your site's product pages with their friends via email, Twitter, and Google+, among others.

If you wish to disable the module, go to Marketing > Social Media, select the radio button Do Not Display and click Update.

Limitation:
There is no separate on/off switches for Twitter, Facebook, Reviews, Share This in social media module. When the social medial module is enabled, it enables all the social media options.
If you want to only display some, but not all of the social media icons, you will have to manually add the relevant HTML codes into your long description instead.