Quoting Cheeks mom:" <blockquote><b>Quoting I'm Marbles:</b>" Dont weigh yourself all the time. Once a ... [snip!] ... the beginning of the month so that when I do it's a noticeable difference. That's a really good way of looking at it though!"
From personal experience, my friend BEGGED me to go to a zumba class with her for almost a year. In septemeber I finally went and I have gone 3-5x a week depending on how much time I have. NO BODY looks at you, only yourself. The instructor changes everything so often people do not have time to look at you. I always tell people to go to 2 classes. Because the first time you arent going to know how to do anything, once you go again you will go again you will recall moves and such.
Go to Zumba.com and search for classes in your area, then go to facebook and search for them and see how good of classes they are and then go. Once you go you will see that no one pays attention to ya.