Very good. When the newly married couple arrived, I wondered if he was American or Canadian because he seemed a little out of place in the crowd. But he got the hang of it. So, I guessed that he was a Russian. Again, very good. I had been curious as to what a "flash mob" was. Thanks.
I have to admit I had never seen a flash mob before. I thought it had something to do with photography. But, I had learned that it was a sort of impromptu musical number. It takes a while for me to get into these things. It took me a while to look into the Gangnam trend. I'll probably see more of them on YouTube.