Behavior Psychology plays such a huge part in our shopping habits. This wasn't as apparent until the books like Tipping Point and Freakonomics started to focus on our habits in the early 2000's. Now however after the Social Dilemma came out on Netflix we're starting to realize how social media plays a role in shaping confirmation bias, cognitive bias, and habits that we are not aware of. For example receiving a notification that Richart Ruddie has tagged you in a photo. You receive the email about the tag but not the actual photo so you have to click through to see the photos and post. Once there you are targeted to see other ads and posts to keep you engaged. While this is great for shareholders it was deemed evil by the team who did the movie The Social Dilemma (thats a hard work to spell by the way).
So what are some other examples that come to mind?
Desert. If you received a plate that is round than you are going to perceive the dish as better and sweeter than if it's on a square plate. Why is that? Well let's look at the coca-cola campaign to save the polar bears with white cans instead of blue. The crowd fought back and said this new coca-cola just isn't as good. The issue was that it was the same exact product but the color of the can made it taste worse.