It is best to practice on an empty stomach. Nothing to eat 3 to 4 hours before you practice.Have a water bottle nearby and try to drink a little extra water a few hours leading up to your practice.
Having your own personal mat is the best way to go. For health reasons I do not recommend using community mats. You can purchase mats at Target, Walmart, Marshall, TJ Maxx and any sporting goods store. I suggest that you start with an inexpensive mat. Yoga is not for everyone. If you find that you want to continue and establish a regular practice, I can give you lots ofsuggestions about what type of mat you can upgrade to.Mat Etiquette:It is considered poor yoga manners to walk on someone’s mat.
Shirts: should be comfortable, but not too big. (It will just get in the way). Should be snug enough and long enough to so that when you bend over to touch your toes, there is no gap between the bottom of your shirt and the top of your pants.Pants: should be comfortable and easy to move around in. If you are wearing shorts, they should also be snug enough and long enough so that they will not ride down your legs if you should do a pose that requires you to put your legs up in the air.