So if you strike a conversation with her (even to ask for directions) she might walk away.
You can converse with people on the chat and try to learn more about them.
There's nothing wrong with hanging out if that's what you feel like doing.
It's great to have a "hang out buddy" in your city for lonely nights where all you want is some company (and maybe a warm body, too).
Once you're aware of what's going on behind the scenes you'll have more peace of mind.
Know that it took me more than 5 years to figure out Korea's women (and I still have loads to learn!
It would seem that "hanging out" is just a euphemism for "hooking up," and "dating" is just what we call "going on actual dates, whether seriously or not," but it can be hard to tell.