How to Use Facebook Messages on a Smartphone
Facebook integrates its messaging system seamlessly with its smartphone apps. It even has an app just for messaging: Facebook Messenger. The first is a message in the Message Inbox, the second is in a Chat window, and the third is using the Facebook Messenger app for iPhone.
Notice that in each view, you see the same conversation, with slight adjustments to allow for the amount of screen real estate you get.
The Facebook Messenger app is pretty simple. It displays the contents of your Inbox: a list of conversations from most recent at the top to oldest at the bottom. You can tap any conversation to open it and read it. When you’re looking at a conversation, tap into the text box at the bottom of the screen to open a keyboard for typing a new message.
To start a new conversation, when you’re looking at your Inbox, tap the new message icon in the bottom-right corner of the screen. This opens a New Message screen, where you can enter the names of the people you want to message and the message itself. This should feel eerily similar both to sending a text message and to sending a message on Facebook.
If you’re using an app like Facebook Messenger on your phone, you will likely be notified on your phone each time you get a new message. You can adjust these settings from the app itself.