If you have picked up smaller volumes of cardboard, plastic, glass, metal and other items that can be left at a recycling station, you can choose "Alternative Recycling". If you select that method, you must share this location by taking a picture using the app. The picture is saved with a date, timestamp and geolocation.
Keep in mind that you are personally responsible for the items you have picked up and therefore should be handled accordingly. Your activity in the app and pick-ups are monitored regularly.