Most Helpful Girl
It means you have a shot, she thinks you are good looking.
Ask her out but don't say you like her (coming on strong after only a few messages). Ask her out sooner rather than later; talk for maybe three days then ask her out. The longer you wait, the easier it will be for her to put you in the cyber friendzone.
Most Helpful Guy
Just keep it simple and set up a date with her. "Hey I'm free xx want to meet for a drink?" or whatever sails. Move all conversation to that point. No need to tell her you like her, it is implied when you pursue the date