To add social sharing buttons or the comment fields to EasyBlog, you have a few options:
Using Modules
* Use the JFBCSocialShare module to configure the sharing buttons to add and place them in a module position on your EasyBlog pages
* Use the JFBCSocialWidget module to to setup a Facebook Comments box in a module position you'd like.
Using EasyTags
* Add the following tags to the EasyBlog templates wherever you want the buttons to show:
{SCFacebookLike}{SCGooglePlusOne}.. etc
{SCFacebookComments}Those tags will be replaced by JFBConnect with the proper social widgets.
I hope that helps give you some ideas, but if you have any questions, just let us know.
Thanks,
Alex