As the story is a bit of a rant, I'm employing hyperbole to make my point. Given the fact that you think I don't understand what creepy means, I suggest you might want to look hyperbole up.
But to your point, it's the manner of approach that's creepy - the lines, the leering, the blocking my way, the invading of my personal space, all creepy. It's not every guy. It's not even most guys. I've met perfectly nice people while out and about. But this is, as I said, a rant, based on my experiences and my frustration with those experiences.