- On Start, flick left to the App list, and then tap Settings http://cmsresources.windowsphone.com/windowsphone/en-us/How-to/wp7/inline/start-icon-settings.png.
- Flick left to Applications, and then tap Pictures+camera.
- Turn on Include location info in pictures you take.
If you want this information to stay with your pictures when you upload them to Facebook or SkyDrive, turn on Keep location info on uploaded pictures.