I am not sure how to apply this form to my sight. I cant figure out how to use or to share.

If you have a standard website, please review the following guide on ways you can embed your form to your site:

Adding-a-Form-to-a-Web-Page

Which-Form-Embed-Code-Should-I-Use

Getting-the-Form-iFrame-Code

If you want to embed the form to a facebook page, please review this guide:

Adding-Form-to-Facebook

Do let us know if you come up with any doubts during ther process. Thank you.