There are two options to add the sharing buttons to articles.
1. Enable the JFBCContent plugin and configure the JFBConnect > Social area Like tabs - 'Content Plugin - Like' and/or 'Content Plugin - K2 Like' depending on which you're using to view articles. This can add all of the sharing buttons, depending on how you have it configured.
2. There isn't an Easy-Tag to add all of the share buttons at once, but you can manually add an easy tag for each of the buttons. Please see
www.sourcecoast.com/jfbconnect/docs/social-sharing/easy-tags for more information on how to add the tags. The ones you'd be interested in are: JFBCLike, JLinkedShare, SCTwitterShare, and SCGooglePlusOne.
This should get you started, but please let me know if you run into issues adding them.
-Melissa