You can appear offline on WhatsApp by following these steps:

  1. Open WhatsApp on your phone.

  2. Tap on the three dots icon in the top right corner of the screen.

  3. Select "Settings" from the drop-down menu.

  4. Tap on "Privacy."

  5. Scroll down to "Last seen" and tap on it.

  6. Select "Nobody" to prevent others from seeing when you were last online.

  7. You can also disable "Read receipts" so others won't know when you've read their messages.

Note that by disabling "Last seen" and "Read receipts," you won't be able to see other users' last seen and read receipts either. Additionally, you will still be able to send and receive messages, but others won't be able to see when you were last active on WhatsApp.