What should work (but doesn't seem to work on mine), is to open the gallery, then hit the menu button on the bottom left of the phone; scroll down to Tag Buddy and turn it on. If you select Tag Buddy you can control what info it will show.
I have had tag buddy turned off since I got my S4 in August, so I don't know if an update since then killed it, or maybe I disabled an app it needs to work, but on mine today, I turn it on, and exit only to find it off when I check again... Hopefully this is an issue with my setup, and Tag Buddy will work for you.
Posted via Android Central App on my VZW LG GPad 8.3 LTE