Make it possible to have a 2nd nationality.
Some people, like me, were born in one country, but live in another. I'd like to have both countries shown, because I wanna be able to easier meet people from both of these nationalities.
Maybe even add a thing that shows which languages you can speak, because almost everyone here speaks English + some other languages. I, for example, speak English, Bulgarian and know some German. Make it so that you can adjust the language thing, of course.