You might also learn some stock phrases and practice how to make a connection that might be continued later.
It’s not easy, I should know! I am also by nature quite introverted.
But clearly, the guy was cruising you. Taylor Swift was just something to talk about. Maybe you could have said something like, “Listen, I have to get back to work, but maybe we could exchange numbers? I like to talk about it more over coffee or drinks.”
Then the next time you meet, everything is a little bit less awkward.
Just a thought from an old auntie who has been there and done that. ;-)