While the 26 posture sequence of Bikram is always the same, your own practice is almost always guaranteed to change in every class you take. Maybe you have a great standing bow one day but the next day you can't seem to balance. It's okay. That's why we call it a yoga practice.
There aren't any quick tricks to perfecting your practice (you'll improve over time), but there are a few things we suggest avoiding because they will work against you. Try to stay away from:
Eating right before class: We recommend that yogis stop eating 3 hours prior to starting your practice. Practicing on a full stomach will make you sick in class.
Not hydrating: It is so important that you come to class well-hydrated (coffee doesn't count!) so make sure to drink lots of water. A well-hydrated body will help to keep you strong for the full 90 minutes. Try Smartwater and coconut water; they're both full of electrolytes. Don't forget to hydrate after class as well.
Wiping sweat: Sweat is your body's way of cooling itself so let it do its job! A Bikram class is a fun challenge all on its own; don't waste your energy on cleaning off sweat while in class.
Wearing heavy clothing: Don't forget - you're in a hot room that is heated to 105 degrees with 40 percent humidity. Sweatpants and a baggy t-shirt are not the best choice. Not only will you be uncomfortable, but heavy clothes can (literally) weigh you down. Look for moisture-wicking shorts, capris, tanks and sports bras that will quickly absorb sweat.