Make it easy to share your product on social media or with a friend.

Use bigger share buttons for your top performing social network. It depends on the platform. You can easily embed code for Facebook/ Twitter etc. Share buttons. You can also design customized share buttons

https://blog.hubspot.com/blog/tabid/6307/bid/29544/the-ultimate-cheat-sheet-for-creating-social-media-buttons.aspx