You can add new contacts to WhatsApp manually from the Chats tab or you can scan someone's QR code within the app.

WhatsApp boasts more than 2 billion users worldwide, but if you don’t live in one of the countries where it’s popular, you may have never used it. Still, if you’re looking for a good messaging ...

You can easily create a WhatsApp account by following the step-by-step instructions to enter your phone number and name.