The share settings allow you to pick which methods you want to provide for shoppers to share products or blog posts on their social media network. They will show up as small icons on product pages and blog posts.
Available share options
Share settings can be accessed in Store Setup › Store Settings, under the Share tab.
The sharing settings control what options your customers are provided with to share your products across different social media sites including Google+, Facebook, Twitter, LinkedIn, and Pinterest.
Click on a social network to turn on the sharing icon for that network. It will display in color with a checkbox in the top right. Click an active social network to deactivate sharing, and the button will be grayed out.
The social sharing icons are displayed on product pages below "Add to Cart" button, and on blog posts.
Enabling the Facebook "Like" button? In order to display the Facebook Like or Recommend button on your product and blog post pages, you must provide your Facebook user ID. See Adding the Facebook Like Button to Product and Blog Post Pages for detailed instructions.