If you are having an Instagram, Facebook, Google+, Twitter, Youtube, Vimeo, or Pinterest profile which you would like to show to your customers you should definitely do so. Not only can it improve your Google ranking but also make your customers happy to find more information about your shop including reviews, comments of other clients, and pictures.
It is that easy:

1. Click on "Apps".

2. Get the free "Social" app.

3. Turn it on

4. Just insert the social networks that you have

Don´t forget to click on "Save" then you are done. :-)