I was talking to a decent looking woman just because. At some point this guy overhears that she's from Boulder, steps in between me and her, and says "Boulder is so beautiful--the perfect place for you." She didn't say anything, and just tried to look around him back at me (he's a large guy), so he stepped back to make it more of a three way conversation. Then I broke the silence by saying "great observation," and he left. What exactly was he trying to pull?