Tag, You're it – what does it mean to be "Tagged"? | Be Web Smart
If you're new to social media sites like Facebook, Twitter and Instagram, you may have heard of "tagging" but are not really sure what it means. Simply put, tagging identifies someone else in a post, photo or status update that you share.
4 Mar 2014 ... See, if your Facebook friend posts a photo, and you are in that photo, then usually only her friends (or whichever audience she chooses) will see ...