Once bought your e-ticket will be available in the Gaiyo app. This e-ticket contains a QR code which can be scanned in busses and trams. Open the ticket in the Gaiyo app, so that the QR code is shown on your screen. Present the QR code towards the glass or scanner where you would normally place a physical Public transport card. If the vehicle does not have a scanner, showing it to the driver or conductor will suffice. Subway stations can only be entered by scanning the QR code on the scanner, next to the gates.