Local Customs
There's a Thai proverb which says, "When you enter a country where everyone winks, wink back." Or as we say, "When in Rome, do as the Romans do." As with any foreign country, your life teaching English in Thailand will be a lot easier and you will make a lot more friends if you show respect for local customs and make the effort to adapt to them.
Here are some points that it’s worth bearing in mind not just in dealings with students, but with Thais in general.