6. Control who can see your personal information
By default, anyone who knows your mobile number can add you to their WhatsApp contacts and see your personal information. You can change this by going into Settings->Account->Privacy and then change the options shown in the screenshot below.
5. Quote and Reply to a message
Another great WhatsApp trick during group conversations is to quote someone and then reply. This is a great way to reply different chat messages. Long press the text message bubble and on top you will see a back arrow. Press it and it will be quoted.
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