In order for the visitors to share your site, you need to activate the share button under the Cogwheel Icon > Settings > Social Media. In the section Share, click on ON. The share button activates Facebook Like. Twitter Tweet and Google + 1
When visitors share your Portfoliobox site to Facebook, you can choose to either allow them to share your actual website, or link it to a Facebook page that will be shared instead.
To link a Facebook page to be shared instead of your website, enter the Facebook page URL in the field Facebook URL to Like. If this field is not filled, your Portfoliobox site will be shared. You can submit a Facebook Share Image to determine which image appears in the post when your site is shared to Facebook.
When both Links and Share are enabled, a share icon will display after the other social media icons.