What does this body language mean in the workplace?

I recently joined a new company and met a good looking average woman who is around 30-33 years old. Since I saw her from the first time she caught my attention. However, we have not crossed any word yet. I think she noticed that I feel attracted to her. One day we were the last ones in the office, she left just a fwe minutes before me. Then, one day she came to my cubicle to ask me for some information and I gave it to her 2 or 3 days later. Then, a few weeks later she came to my cubicle again to ask me for information but I didn't have an answer at that moment, so she told me "can you let me know tomorrow, please?". I said ok, but I forgot and never approached to her. That's why the next time we met on the hallways she was very serious and didn't say hi to me. Then she started to come close to my cubicle, she comes almost everyday 2 or 3 times a day to "ask for information" to a woman that is next to my cubicle. When she is there, she speaks a lot (she is from France and I guess she has been told that she has a fancy accent). Sometimes, she also stands up on her place and calls to the woman that is next to me and starts talking from that distance raising her voice a little bit. Sometimes, when I have gone to the toilet and returned I have found her there with the woman next to me. The other day she came to me again to ask me for a report and I told her that I didn't have it but I could find some information in a couple of days. This time, while she was talking to me I saw her directly to her eyes and told her with my eyes (not words) "you are very beautiful". Also, while she was talking to me, she played with her hair (twirled it a little bit). I never went to her place to give her an answer. Finally, one day, when I returned to my cubicle from a meeting she was standing up on her place and was talking to the woman who seats next to me. When she saw me, she sat down immediately and "hid". Can you please tell me, what's going here????