Or if you are in a location where your mobile data is weak, you can use Find Wi-fi to look for available free wifi hotspot near you and connect.
HOW TO LOCATE AVAILABLE FREE WIFI
To find Wi-Fi hotspots, open your Facebook app, click on the More tab and then Find Wi-Fi.
Once in the Find Wi-Fi tab, you may need to turn Wi-Fi on, if it isn’t on already.
Users can then browse the closest available hotspots on a map, and learn more about the businesses hosting them. Although you can discover available Wi-Fi networks, it is important to note that only the free networks can be connected.
However, I personally don’t see the use of this feature, because there are numerous apps that let’s you find and discover available Wi-Fi networks.