If you haven't set up up your Facebook Retargeting Pixel within CliClap please read this article.
Great, now we are ready to move on!
The steps to create a Custom Audience within Facebook, using the Website Traffic option to target people who clicked on your Widget:
Click on this link and select the option: Create a Custom Audience within Facebook
Next select the Website Traffic option
Within the next page of options select People who visited specific web pages
Lastly, add clp.guru under the URL contains field and add a relevant audience name which will be your target audience for creating a Facebook Ad.