How to Add a Contact to Viber on Android
Since Viber has access to your phone book, then you don't have to manually add a contact to Viber. What you need to do, is create a contact on the ...
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If you don't want to participate in a Group chat on Whatsapp any more, you can simple exit the group. Learn how to leave a group on Whatsapp fro Android by doing as follows:
1. Open "Whatsapp"
2. In you Chats list, tap and hold your finger on the Group name you would like to leave
3. Tap "Delete and exit Group" to leave the group chat