‘Nudging’ has been a popular technique used by governments, institutions, and other groups to reinforce positive habits and choices among people without the use of force and with ease of opting out. Different countries around the globe have inculcated the practice of ‘nudging’ into their policies for purposes like improving public health, promoting eco-friendly behavior, and more. It’s important to study and analyze past experiments with nudging in order to understand what makes a ‘nudge’ effective, which in turn will help formulate better such campaigns in the future.