Did you know that Facebook filters your incoming messages into 3 different folders? If someone messages you and you are not friends, Facebook puts it in a different folder other than your inbox. You can check to see if you have missed any messages by using a desktop computer or using a browser to open Facebook on your Smartphone. Click on your Inbox folder, then on Message Requests. Then click on Filtered Requests to see more. If someone messages you and you can’t see it all you have to do is message them and it will automagically appear!