At Starbucks you can order coffee through a Twitter account!

The Starbucks coffee chain has developed a very practical Twitter application , which allows users of its website to connect their account with Twitter and through a simple tweet to treat another user to a coffee. The service is called " Tweet a coffee ". Users have bank accounts linked to their accounts, through which the amount of the coffee is automatically deducted and the recipient of the tweet can download their gift and redeem it at a Starbucks coffee shop.

Unfortunately, there is no official local Starbucks account in Greece, so the above only applies abroad.

https://youtu.be/AxPZj9x_Dsk

Source: socialmedialife.gr