You'll want to familiarize yourself with some southern speech mannerisms so that you'll know what people are talking about. Try to incorporate some of these phrases into your vocabulary as well.  “Taters” - as in sweet 'taters, mashed 'taters, etc -  refers to potatoes. “Light'nin bugs” are fireflies. “Y'all” is a standard contraction for “you all.” “Amen!” is frequently used to express agreement. “I reckon” is a common substitute for “I guess” or “I suppose.” Terms of endearment, such as sweetie, darlin', sugar, and honey, are commonly used by southern belles. While you should never use pet names to refer to your elders, these terms are great for friends, acquaintances, and children. No matter how old you get, a real southern belle will always refer to her folks as Mama and Daddy. Calling your parents anything else will make you stick out like a sore thumb! Swearing is considered both rude and incredibly tacky amongst southern belles. If you must, incorporate alternative, G-rated curse words into your vocabulary, such as “shoot,” “darn,” and “fudge.” Like swear words, all bathroom talk is considered rude and tacky. If you need to use the restroom, simply excuse yourself from the conversation, and if you must, refer to the bathroom as “the powder room.”

Summary:
Use southern slang and expressions. Use pet names. Call your parents Mama and Daddy. Avoid using swear words. Never talk about the bathroom.