WordPress 2014 theme question

Hi all,

I’m trying to use the 2014 wordpress theme on my site, but I can’t really make it look like the demo here on wordpress. So is there any chance to find out what kind of plugins are used on the demo site ?

At the end of posts there are a related post plugin and some kind of social sharing buttons. I have installed the jetpack, but still it seems to be kind of different from the stuff used on the demo site.

I would appreciate some help on this matter ?? Thanks for reading!