Finding a bicycle is as easy as just opening the app. After you have registered, you are automatically guided to the in-app map view.
You can see all the bikes available near you.
Click on a bike and a pop up with the bike details opens.
Click on three dots and click reserve to reserve the bike for the next 10 minutes without a charge. Next to reserve you can also find navigate to open your preferred mpas app and find your way to the bike.