Absolutely! You can Give, Get, Drop, Send (Pay or Request) money to or from anyone who is based in a country in which the Mezu App is available (currently U.S. only), even if the other person does not have the app installed yet.
Simply send them an invite from the Invite Friends option on the Main Menu available in the app, or show them the QR Code displayed by the app when you Extend to a New User on the Give Code screen when giving money.
Once they install Mezu on their mobile device, they can complete the transaction by claiming the money you have given or sent, or by sending funds to your account if the transaction was a Request.
Give, Get and Drop are unique Mezu capabilities that allow anyone using the app to securely exchange money with people they don't necessarily know, free of charge, and without exposing any of their personal details (such as your name, phone number, handle, bank details, etc.). It's just like cash. But smarter!