Use the button set at the bottom of your public page to share on Facebook, Twitter, LinkedIn, Google +, Pinterest, Reddit and WhatsApp. Add a message inviting your friends to visit and follow your page.
The Dolphin icon in that set will share the link to your feed – use it when you make changes to your page. BUT the Dolphin button has a more important roll for your business. Download it and add to your website’s social media links. Browsers will click and follow your public page.