From the outside: Vulcan
Relating to outsiders, you, me, the rest of the world, Germans from different villages, the stereotypical German is by-the-book, supremely logical no matter how strange the outcome is. If you can show a logical chain of reasoning, you can convince them of nearly anything. Coming from a shockingly violent past, they are rooted to an ideal of universal peace and keeping their emotions deeply in check. Attire must be clean, subdued, sensible. They know most humans do not understand them, but they are patient and paternalistic with the knowledge that with the aid of science, and a calm and quiet optimism, humankind can be guided to a better future.
To each other: Hobbit
Among friends and neighbors, and when they look in the mirror, Germans are complete Hobbits for the best and worst. When you are one of the Kumpels (drinking buddies), life is revealed to be a simple thing: build a cute and comfortable little house in the village and keep it tidy, don't take big risks, enjoy the sunshine and the forests, and never shy away from festivals where you can dress nice with lots of drinking, feasting, singing, and dancing. Don't trust outsiders, but make sure they're treated fairly and politely. Predictability and Tradition, taking time daily for coffee and cake, no work on Friday, no disturbing noises on Sunday. Politics is local- don't go off on any crazy adventures, but if you happen to go, pack appropriate weather gear.