Understand
According to William Least Heat Moon, in Blue Highways, St. Louis is the last Eastern city and Kansas City is the first Western city.
Missouri is known as the "Show Me State"--meaning one should back up talk with proof. The slogan is not an official one, but it does appear on the license plates. It is an endearing statement that people from Missouri say, "I'm from Missouri, you have to Show Me!".
Travelers may not have heard much of Missouri, but rest assured that a welcome awaits all. Tourism is a trickle compared to the western or eastern-most states, and this is reflected in the treatment of tourists and travelers: strike up a conversation with any Missourian in line at the store, a museum, or a cafe and if you smile and tell them you're "not from around here" you'll have a fount of information all for you.