Some Practical and Technical Aspects of Optimizing SMO.
Share Buttons - Make it easy to share for users by adding Share Buttons to your Content. You should also show the numbers of shares to demonstrate Social proof.
Social Icons - Group and display your Social Icons in a prominent place on your site.
Subscription Options - Group together Subscription Options such as Email, RSS, and Newsletters.
Shareable content - Some Content is more readily shareable such as 5 Top Tips articles as they are short and scanable.
Social Login - Use Social Login Options to make it easy for users to Comment.
Rich Snippets - Social Networks pull in Rich Snippets, Data designed to summarize the Content of a page. These are very useful for users. Facebook uses OpenGraph, Twitter uses Twitter Cards and Google Plus will take values from OpenGraph, you just need to set up your Authorship Profile for your rel="author" tag to work correctly. If you use WordPress you can use the Yoast Plugin to manage and Optimize these Rich Snippets
Title Tags - Optimize your Title Tags for sharing, especially on Twitter where there is a character limit and include your name.
Images - They really do say more than a thousand words. Include Images that Add Value and include an Image that can be used as a Thumbnail for your Content.