When you know which word/sentence you wanna turn into a hyperlink, select it and copy it.
Then paste the word into the first textbox on butns.com
Then choose how your hyperlink should appear on your website (the color will be the same as what is normally used for links on your website).
Choose which destinations you want to include in your link pop-up. You can also paste/write specific ones in the text-field at the bottom.
Now copy the code.
Then go back to your HTML document and replace the hyperlink with the code you copied from Butns.com.
Done! Enjoy your new butns bubble.