How do you do?
I really don't know what I can talk. So, I don't speak English very good, but I usually can undestand you (if you don't speak about nuclear physics:D). I'm from Belarus, but my native language is russian.
I can't understand people who talk about nuclear physics in English and apparently I am in the top 1-2% of English speakers, so don't feel too bad about not understanding them! :P