You could always get a bus day pass for the area, some good snacks, shoes and comfortable clothing. Check out Flightradar24 and Google Maps to find out what could be a good spotting area, depending on the approach/departure paths and the accessibility (footpaths, bus stops...). Zurich Airport even has a bus stop called "Pistenende" ("runway end") for all the plane spotters.
As for the photography: Take a lot of pictures. Memory on those SD cards is almost free - don't be afraid of making a lot of bad pictures. It's a learning experience. Eagerly test out the limits of your camera and lenses, and all the settings you have on your camera.
https://www.spotterguide.net/ can get you hints about spotting locations.