There are 5 of us, although yesterday there were 6. One (me) speaking English and Russian, no Serbian. Two speaking Serbian and English, no Russian. Two speaking Russian only. And one lucky (and ambitious) person speaking Russian, English, and Serbian.
What happens when you cross the Serbian/English-only with the Russian-only after a long day of sightseeing? The photos below explain.
It's a good thing that laughter is a universal language!
I also made a little video and uploaded it on Youtube.