How to add share button to Magento

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share

You can use share this tool. This will give you icons and sharing links. For sample I have added code here. You can also generate new using this which is free and open source, http://www.sharethis.com/
Copy the span tags and place them where you want your buttons to appear in the code.

span class='st_' displayText=''></span>
<span class='st_instagram' displayText='Instagram Badge'></span>

Copy the script tags and place them inside and at the end of your “head” tag.

<script type="text/javascript" src="https://w.sharethis.com/button/buttons.js"></script>
<script type="text/javascript">stLight.options({publisher: "791bb30f-74a2-4e0f-bde5-5bc23d04c358", doNotHash: false, doNotCopy: false, hashAddressBar: false});</script>

For the WooCommerce I use 

Instagram Followers Shortcode

https://wordpress.org/plugins/instagram-followers-shortcode/

I also recommend this plugin to convert your Wocommerce website into Instagram shop.

https://codecanyon.net/item/woocommerce-instagram-shop/15315786