Let people know where you are, or are not!
Use My Checkin to do Facebook checkins at any place in the world, whether you are actually there or not.
Practical e.g. if you are supposed to be some place else, like at work or something, or if you want to brag about your vacation even though you’ve been home all the time.
Search for map locations.
Get Places surrounding the map center.
Possibly pan and zoom the map.
Click on any of the places to select it. The map centers on that place and its name is shown above the map.
Checkin to the chosen place.
Settings control the map and places.
Help might get you started.
About shows information about the app.