Expats should learn the language because it will draw them closer to the people. Thai people are very friendly and caring if you are able to communicate with them. They can be misunderstood if expats can’t communicate with them. Foreigners should also learn to keep their mouth shut if what they are about to say demeans the Thai people, their culture, religion or whatever/whoever they give high regards. Lastly, foreigners should learn the virtue of ‘jai yen yen’.