 The fifth and final psychological hack is the endowment effect. Have you guys ever wondered why Starbucks always asks for your name? Because this cup of coffee psychologically gives you a sense of belonging and people generally values things that belong to them much more. This is the endowment effect. Not only that, Starbucks baristas are trained to write their names to the best abilities which allows the consumers to feel that there's a sense of belongings and that's the reason why we would actually share these on our social media.