I've been hearing Korean in my day to day life for the past 3 years and some words (don't ask me why) I enjoy listening more than other words.
The words I enjoy listening to the most are :
진짜
여부세요
Which one(s) are yours? :D
여기저기 and 화팅 (I love hearing Koreans say this)
Japanese has a similar rhythmic word I also like -"toki doki" which means sometimes
Oh! Me too, I like hearing their accent too, I find it so cute. And I even trying to pronounce it. =D
Anyway, here are some words that I enjoy listening to them:
annyeong
mwo
wae
ottoke
aigoo