Anonymous:
Next time you see her in person say "I'm going to get some coffee, you want to come with?" Easy as that. She can see it as just friends or a date but she won't be sure and if it gets awkward you can completely deny it was meant as a date. Sneak dating at it's finest.

Trust me, nonners, I have been on a few sneak dates in my time. ;)

Problem with that here, though, is that I’ve never met her in person. :l