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

We asked people in Kansas 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 retiring in Kansas?
•  How do I meet people in Kansas?
•  What is life like in Kansas?
•  Is there a lot of crime in Kansas?
•  Is there a lot of diversity? Are people in Kansas accepting of differences?
•  What are the schools in Kansas like?
•  Is the cost of living in Kansas high?
•  What advice do you have for expats having a baby in Kansas?
•  What are healthcare services like in Kansas?
•  Is the cost of living in Kansas high?
•  What type of recreational facilities are in Kansas?
•  What is the weather like in Kansas?
•  Are there good restaurants in Kansas?
•  Where will I buy groceries and do other shopping in Kansas?
•  What are the visa & residency requirements in Kansas?
•  Are healthcare and health insurance expensive in Kansas?
•  What do I need to know when buying property in Kansas?
•  Are foreigners allowed to own property in Kansas?
•  What appliances are typically included in a rental?