What cultural faux pas should I try to avoid making in Louisiana?

We asked people in Louisiana if they could share any humorous cultural blunders they commited. For new expats, keep in mind that these incidents are an inevitable part of expat life. Learning to laugh about them is the key!...

Other Questions:

•  What do I need to know before moving to Louisiana?
•  How do I find a place to live in Louisiana?
•  What is a typical expat home or apartment like in Louisiana?
•  What is the average cost of housing in Louisiana?
•  Should I buy or rent a home in Louisiana?
•  What should I pack when moving to Louisiana?
•  What cultural faux pas should I try to avoid making in Louisiana?
•  Why do people move to Louisiana?
•  What are healthcare services like in Louisiana?
•  What are medical services in Louisiana like?
•  What are typical rents in Louisiana?
•  What appliances are typically included in a rental?