What is the most logical next event?

How to use viber
Install viber on your mobile device.
Once viber has been downloaded, tapping on the app will begin the setup process. Input your device's telephone number and grant access to your contact list, then you'll be sent a text message with an access code.
Input the access code you receive via text message. You're all set up! Now you'll see a number of options at the bottom of the app including messages, recents, contacts and keypad.