Question: how to check in on facebook?
Answer: 1Tap Check In at the top of News Feed. This brings up a list of nearby places. ... 
2Select the name of the place you'd like to check in to. ... 
3Type a comment into the Check In box. ... 
4Tap the person icon to tag friends. ... 
5Tap Done when you're done tagging. ... 
6Tap Post in the upper-right corner.