Installing Bonus plugins for premium theme.
Once you activate the premium theme you will see a notice on the top of your wordpress admin screen asking you to install the some recomended plugins. If you don’t want to use these plugins just click dismiss this notice. Otherwise click the begin installing plugins link.
You can also install these plugins at any time by clicking on the apperance >> theme recomended plugins page.
On the plugin install page you can click the install link and then activate the plugin in the installed plugins area of the wordpress admin: Plugins >> Installed Plugins