Why would she avoid eye contact?

Asked by Ladybug2014 (179) December 9th, 2014 from iPhone

I started a new job. Everyone claims a certain “lady” in the office is kind and bubbly. She is probably the most attractive female there. However she avoids me like the plague. When I speak to her she won’t give me eye contact. I’m really taken back because she is suppose to be so professional. I have not been there long enough to offend her in anyway. She even looks down when she passes me. So strange. Just curious what makes a person act in this manner in a professional environment.