When you send and receive messages on WhatsApp, the chat windows display two blue ticks in the bottom right hand corner. When a message has been delivered you will see one blue tick, when the other person has read your message you will see two.
Now its safe to say those blue ticks can get you in a whole world of trouble, especially when you don’t reply instantly and someone sees you have read their messages. Or if you want to pretend that you never saw that message in the first place.
You can turn this off, but if you do, that means that you will not be able to see when people have read your messages either.
Apple users: If you get Siri to read the message, the blue ticks won’t appear so this could be a good way to read a message without the sender knowing you have.
Android users: If you read your messages in notifications, the sender won’t get the blue ticks.
iOS: Settings > Account > Privacy > Toggle off Read Receipts.
Android: Settings > Account > Privacy > Untick Read Receipts.