This is a Google Plus Share Plugin when you will activate this Plug-In it will add a Google Plus Share Button to your every Blog Posts and Pages. This Plug-In is very small in Size but its very useful.
You Just Need to Download The Plug-In and Upload the Zip File (Plugins >> Add New >> Upload >> Browse >> Install Now) in to your Plugin Directory using the WordPress default Plug-In Installer and Activate it. Its very easy to Install. After Activating the Plug-In it will automatically add a small Google Plus Share Button to your Every Blog Posts and Pages.