Open Google Play and Install the 'WireGuard' App
Open App from your homescreen and tap the blue '+' circle in the lower right.
You can now select how to import your connection.
Import File Step 1.
Copy your endpoint configuration (If not familiar yet, View WireGuard QR Code & Configuration) and save to a file on your Android device.
(If you need help with copying to your Android, check out Google's walkthrough HERE)
Import File Step 2.
Tap 'IMPORT FROM FILE OR ARCHIVE'
Import File Step 3.
Find your configuration file and select it.
Wireguard will automatically import.
DONE WITH FILE IMPORT
QR Code Step 1.
Tap 'SCAN FROM QR CODE'
QR Code Step 2.
Scan QR Code and give the connection a name. Save.
DONE WITH SCAN FROM QR CODE
Tap your new connection to view details.
Tap the switch in the top right to start connection.
You will be prompted with a 'Connection Request'. Tap 'OK'. (This will only happen when you import your first connection)
You are now connected with WireGuard on your Android Device!
*Account displayed is not active and is only used for demo/tutorial purposes.