If you are a new student to her class, my best advice would be to get there on time and have a great personality. Ms. Sullivan enjoys knowing her students and interacting with them, the best thing to do is get to know each other. In her class, you need to fully participate as it is part of your grade. Her class is not at all hard if you are into fitness, but if you are not, I recommend you try your best (effort counts for a lot in her class).