Glad you had a great time. Your study of the language reminds me of a story.

I was playing Blackjack in AC when it was time for a dealer change. Both were Korean. They talked in Korean to each other and when the new dealer started This guy at the table said so the last dealer really thought the table were cheap tippers or something like that. He then proceeded to talk to her in Korean.

The fellow was military and was stationed in Korea and did something with interogattions.
Barry