Robert Cialdini's book, Influence - The Psychology of persuasion talks about 6 comprehensive principles that guide human behaviour. The first principle universal principle of influence is reciprocity. "Simply put, people are obliged to give back to others the form of a behavior, gift, or service that they have received first." There is not a better place than the internet to validate this. As a user, does it not feel good when you are been acknowledged, given importance and bestowed with exclusive offers? For the first time website visitors, giving a warm welcome becomes essential to show that you appreciate them visiting the website. Using web push notification you can convert your anonymous website visitors into audience. As these users subscribe to push notifications, reciprocating their action with a welcome notification that presents a unique offer is a great way of kickstarting a relationship. The welcome notification also assures the user that they have successfully subscribed to your website. Thanking people is an essential part to make users feel valued and welcome notification plays a pivotal role in making this happen.