How do I know if a friend has seen a message I sent on Facebook?
This is about using messages on Facebook. For help with the Messenger app or messenger.com, visit the Messenger Help Center.
If your friend has seen your message, their profile picture (that looks like a small circle) appears next to the message.
This is for checking the read status for a message from your Facebook account on a computer. Learn how to check if someone read your message on your Messenger app.