If you don’t want people to know that you’ve read their messages, we’ve hooked you up with ways to turn off Read Receipts for some messaging apps:
Here’s how: Go to Settings > Messages > Turn off Send Read Receipts
There is unfortunately no way to turn off the Seen feature on the mobile app, but if you are ignoring someone try using the desktop version instead, where you are able to turn it off.
Here’s how: Go to Options (in the right bottom corner) > Turn Off Chat
Here’s how: Menu > Settings > Privacy > Turn off Send Seen Status
Here’s how: Options > Mail > Tracking > Never Send Read Receipt