I love Duolingo!
To be honest the only reason i´m learning German is because i love saying Nein alot so i said well why not learn the whole language instead? I just wanted to say that because i feel like someone will feel related not just in German but other languages too!
For me I wanted to learn Russian but when the Ukrainian course came out I tried it, sadly I didn't have Cyrillic keyboard though. Eventually the iOS version came out so I just tried it on there and I said "You know what? I think I will learn Ukrainian". Now I'm almost done with the course