How Highlight and Share Works
Highlight and Share at its core is a highlighter. If users select some text, the user will be shown a row of enabled social networks.

Text Selection With Highlight and Share
Content Sharing (Text Selection)
Highlight and Sharing displays a small pop-up when a reader highlights text on your site.

Text Selection With Highlight and Share
By default, this works on any post or page content. You can customize Highlight and Share to show anywhere using advanced selectors.
Inline Highlighting
You can mark a selection of text as an inline highlight using the Block Editor format option, or wrap a selection with a class has-inline-text.

Inline Highlighting
Click to Share Block and Shortcode
The Click to Share block and shortcode let you customize a "Click to Share" box that readers can click to share.

Click to Share Block/Shortcode to Show Social Networks
Image Sharing

Share to Pinterest and Use the Web Share API
Share your images using Pinterest or the Web Share API.
Headline Sharing

Headline Sharing Allows You to Share Headers
Headline sharing lets you share your headers, giving users quick access to copy the headline link and to share it across other social networks.
Highlight and Share is Free: Please visit Highlight and Share on the WordPress Plugin Directory.