Video Calling gets rolled out onto WhatsApp
WhatsApp currently lets you send text messages to your contacts, or call them directly. Soon, you'll be able to do video calls with your WhatsApp contacts as well.
The feature is being rolled out and it requires both sides to have the feature active before you can try it out (so make sure you get your WhatsApp updated to the latest version).
To do a video call, all you need to do is go to your Contacts menu, and tap on the video camera icon. Alternatively, you can start a video call by tapping on the phone button located at the upper right hand side of the conversation room, and select the video call option found in the dialog box.
If you don't want to wait, you can download the APK for WhatsApp beta version 2.16.381 from APK Mirror to give it a spin.
Source: Android Authority