You can get board the fixed line 28 at bus stops at scheduled times. Reservations are not required here. In order to be picked up at a bus stop of the mini Texelhopper buses, you need to make a reservation at least 30 minutes in advance.
There are also a number of 'virtual' pick-up points included in the reservation system. There is no visible bus stop with a number at these places. But you can also reserve a mini Texelhopper bus from and to these places.
Below an overview of all the numbered bus stops.