What happens next?

How to navigate with google maps on an android
Turn on location services.
Swipe down from the top of your screen to access the notification panel, and look for the icon for location services.
The icon for location services is located in the row of quick settings in the notification panel, and can either be a circular icon with a dot in the middle, or a tapered pin facing downward, depending on the model of your device.
It will likely be labeled, so it should be easy to find in the notification panel. Tap on the location services icon to turn it on.