Ok, I am a major newbie.  I am a total athlete and I love to workout and especially run.  You would never know it by looking at me since I am overweight.  I am really scared about my first class because I know absolutely nothing about yoga.  I think the basic etiquette (sp?) is what I worry about most.  I just don't want to make a fool of myself.  So if anyone has any suggestions for me please let me know.