Geo tagging is the method of geographic location of metadata .it has the latitude and longitude coordinate to a geo tag photos or video, websites, SMS messages or RSS feeds. These metadata can be used to display photo data and location of the photo were its taken and you can also contain altitude, bearing, distance, accuracy data, and place names.when you geo tag your pictures you can search the pictures available in public viewing you also find the pictures in that particular place.
1click the mainmenu.
2open the camera option.
3now open the setting option in top of the screen.
4now you can see some pop up menu .select the GPS tag.