There are two main places we want to place a direct call to action. The first is at the top right of our website and the second is in the center of the screen, above the fold. Your customer’s eye moves quickly in a Z pattern across your website, so if the top left is your logo and perhaps tagline, your top right is a “Buy Now” button, and the middle of the page is an offer followed by another “Buy Now” button, then you’ve likely gotten through all the noise in your customer’s mind and they know what role you can play in their story.
For best results the “Buy Now” buttons should be a different color from any other button on the site (preferably brighter so it stands out), and both buttons should look exactly the same. I know this sounds like overkill, but remember, people don’t read websites, they scan them. You want that button to keep showing up like a recurring theme. A person has to hear something (or read something) many times before they process the information, so we want to repeat our main call to action several times.