I am an administrator in Hebrew and English Wikipedias and the Hebrew Wikisource. I also write in the Russian Wikipedia. I know Russian well, i learned a little Slavic linguistics in the University, and in my last visit to Prague i bought a dictionary and the 3-volume Mluvnice, so i can read Czech, but unfortunately i cannot write it. I plan to learn more Czech some time soon, so i would be able to read Čapek, Hašek and Kundera in the original.
In other Wikipedias i mostly fix interwiki links. I do it manually and not with a bot. Proper interlanguage links are very important to me, so i am a little bolder than the average editors: I go to Wikipedias in languages that i hardly know, guess the content of the article and add or remove interwiki links accordingly. If you think that i messed something up, please let me know!
I use several tools that i created to find problems in interwiki links. You can read more about them here: