I like this girl who i dont really know?

I've been working at my job for 2 years and during the winter I check coats at a casino where many people go to clubs and party. Theres this girl who's a dancer and shes gorgeous. The first year I saw her i was very shy and only once or twice I walked up said hi and made small talk. When winter was over I saw her once during the summer gave her a hug asked her how she was doing and told maybe i'll stop by the club she was dancing at to see her but I never did because i'm not a club person. The next winter which is present winter i was excited to see her again but she never said hi, waved, or even smiled at me maybe once but she acts like i don't exist. I don't know her really well but i thought the year before I was very polite and I thought I broke the ice and thought that we would always say hi and start talking every once in a while. It kind of made me mad but I cant get mad at someone who i don't really know so I kind of thought this girl was a ***** and ignored her but it's hard to ignore someone you have an attraction for. This is the scenario every night. She is a dancer and wheres skimpy clothing. Shes not a stripper but she wears shorts that show her *** cheeks and basically a bra that well you know shows her . I wonder if she thinks I'm a pig for working at the coat room I mean i don't blatenly just stare but i catch a glimpse or her cute once in a while but mostly i keep to myself, anyway every half hour she walks by where i work to go on break and she walks by with a few other dancers. She walks by and turns her head the other direction as if to ignore me. I don't wanna think to much into it but it seems like she doesn't want to look at me. I don't get it because I never said anything to offend or piss her off and I come off as a nice guy. I sometimes want to go up to her and ask what her deal is but I know from experience thats not a good idea. I really kinda like her and wonder if i'm just not her type either know i don't believe in types. Heres a little side question for the women who read this DO APPEARANCES MATTER LIKE IF I'M A LITTLE CHUBBY AND HAVE A SCRUFFY BEARD IS THAT A PROBLEM. I consider myself an old school gentleman and i'm 22, Mr. Nice guy but not a push over. What should I do? People I talk to say different things like one friend says go to the gym lose some weight and maybe she'll start noticing me. Some people say to stop being shy and just go talk to her but i get nervous and don't know what to talk to her about. I never took advantage of talking to a lot of women in high school so i'm not smooth with women. I know i could be a great guy for this girl and any girl really but i don't know how to show or tell this girl i'm a good guy for her. WHAT TO DO? Shes driving me crazy every night LOL. Every time she walks buy its like getting cold water thrown at my face LOL. I cant think of anything else to add to this story. If you guys and girls have questions or answers to help me out please give them to me. Thanks.