What do I feel for this guy (a male co-worker)?

II met him around 4 months ago. I noticed he is attracted to me since the beginning (by the way he has looked at me). However, he avoids me and ignores me. I have tried to have some talk with him by going to his cubicle (3 or 4 times so far) to ask him information regarding a report. One of these times when I went to his cubicle, the guy looked at me deeply into my eyes, like telling me "you are so beautiful" or "I love you". I twirled my hair unconsciously. I can't get his attention because he sits facing the wall, so if I enter into the area where his cubicle is located he is not able to notice me. However, I go and talk to a female co-worker who sits next to him especially when I realize his seat is empty (so that when he comes back, he is able to see me). Last week there was a get-together (lunch in the office) with the other co-workers of the department and I sat almost in front of him with the tip of my feet pointing at him (again I twirled my hair when I sat down). I noticed he was kind of intimidated by my presence. He tried to avoid eye contact with me, however it was impossible for him to notice me. I am working in a very multi-cultural environment and I just don't know how to handle this multi-cultural thing because I myself come from Europe. What do I feel for this guy?