Comparing to Germans/Austrians where stand the slavic people, meaning Ukrainians/Poles/Russians?
Well, first of all they are much more similar to each other, than they are to neighboring Germans. This is proof of a common origin, despite the huge geographical area over which Slavs are spread out. There are exceptions to this of course. Northern Russians, have more in common with Baltic, German, and Finno-Ugric people than with other Russians. The identifying genetic markers are the R1a and I2 haplogroups.
Second factor of difference, is probably that we are relatively new. From a European perspective, and kind of from our own as well. Germans are ancient, and you can read about them all the way down to tribes and individuals in texts like Caesar's Commentarii de Bello Gallico. They appear throughout antiquity, play an important role through the various Gothic kingdoms, and then eventually play a key role in the Holy Roman Empire. Slavs during this period are shrouded in myth and legend. This newness plays out in all sorts of ways, from feelings of inferiority to the other extreme of superiority because we are "wilder".
Finally, the fact that we are descended from the same people, means we inevitably carry some similar traits. These make us closer to each other, than to our German or Romanian neighbors. Germans are organized, we are disorganized. Germans are pedantic, while we paint with a broad stroke. Germans are hard workers, while we need a good incentive to put out. I think these things are common, from Prague to Vladivostok.