Have you ever wondered why your users don’t interact with your product the way you were expecting them to? It might be because you may not understand how to use different psychology principles to design your products to elicit specific responses and actions from your users. Your customers are driven by emotions when they are looking at a website, wondering if they should buy a product or not. They are instinctively trying to establish a connection with the brand and, depending on what they see, they will either complete the purchase or not.
https://mopinion.com/guide-to-psychology-principles-in-ux-design/