Live an extravagant lifestyle. Southern belles are considered upper class and are usually accustomed to a seemingly endless supply of old money.
Learn how to make a mint julep. These are staple drinks during those hot summer days in the Old South. Find a recipe at Drink Mixer. If you don't drink alcohol, sweet tea and lemonade are acceptable.
Incorporate words into your vocabulary, such as "y'all," "darlin'," "lamb," "peach" and "precious." Remember, you're going to a "cotillion," not a party.
Fan yourself often and carry a white, lace hankie. The hankie could come in handy to get your gentleman caller's attention.
Have your gardener plant plenty of magnolia trees for you sit under while you read letters from your beau.
Understand that when things get difficult or you're expected to physically work, you may experience a case of the "vapors."
Read "Gone with the Wind" and learn to quote Scarlett O'Hara. Study her movements and the subtle way she gets the attention of Rhett Butler.