Learn some finnish. I can verify this, I'm a finn and I (really) speak this language ;D
slangi,getting acquainted with Finnish slang.Did you know Finnish is probably the most difficult languagte to learn in the world,yet they make it more difficult with slang,a mixture of Russian,Swedish and English Read more on this fascinating topic!
Indo-European, Indo-European, etc., etc., down the line until - oh, look - Uralic. Finnish, you're fine the way you are. (I am currently teaching my parakeet to say "rakastan sinua" and I am not Finnish!) (Neither is my parakeet.)
Learning the Finnish language is like
tapaan sinut & tapan sinut <-- it is death serious business to pronunciate right long or short vowel