you gotta play it chill and mellow. most people don't like the idea of work dating... ask her out to lunch like everyone was saying because lunch is still work related yet a time to feel looser. you can get to know her better and she can get to know the true pimp u are.
when you get back to the office just play it like it was nothing.. the more you over analyze, the more u fawk your chances. don't place any value on that lunch and just ask her again the next day (if it went well) and start calling her your "lunch" buddy or something :ghey: like that.
btw, SN is kinda :eh: good luck!!