After reading this article, I was wondering what you all consider the best or your favorite CALL TO ACTION and why?

Here is the article about creating a call to action that actually makes users click.
https://www.activetrail.com/blog-marketing-en/how-to/how-to-make-your-call-to-action-irresistable/

Many thanks for your invaluable comments. I think we all would take something away from great examples of CTAs.