I know, I saw it a couple of times in Iceland and even in the Netherlands (shouted in excitement :p). In Iceland, Tromsø or similar it's easy to see with the naked eye (although not as vibrant in colors). In the Netherlands you have to be lucky (but luck favors the prepared mind…so keep an eye on NOAA satellites as they can give alerts for the upcoming hour). It's important not to look for that signature green look, but rather look for white streaks or other contrail/"cloud"-like formations, you can confirm aurora with your camera or by seeing it "dance" a little bit in less ideal conditions. Do note that solar activity goes in 11 year cycles, we've just had a peak (albeit a very mild one), next one is in a decade likely. But aurora is fickle a thing: solar, geological and weather conditions have to be right if you want to spot it at lower latitudes. And it can appear and dissepear right before your eyes.