I'm so used to listening to all basic Korean expression, my mouth speaks them automatically...
When I want to say 'Oh, yes, I understand'... I'm suddenly like 'Ah, kre(yo)? Arasseoyo' :D
Or when I'm mad and want to call somebody back, I'm like 'Yaa~Yaa~' and it means another exclamation on my language, I can't even explain what in English, like when you're surprised... in Japanese it would sound 'Eeee?' Or maybe in Korean 'jjinjja?' Well, whatever, imagine someone's reaction, when I call after them... 'ya-ya~~~' and they're like 'what's she surprised at?'
I like very much 'saranghae'... ^^
Also, 'micheosseoyo??' 'mongchungi' ^^
I kinda sometimes want to call my close male friends 'oppa~' :D
