Thailand is often called the "land of smiles", and rightly so because you will see more smiling people here than anywhere else in the world.
The country has a population of about 65 million, with some 8.3 million of these people living in the Bangkok area. Approximately 75% of the citizenry are ethnic Thais, 14% are Chinese, and the remaining 11% are mostly Indian, Malay, Karen, Khmer, or Mon.
Thai people are friendly and tolerant. Avoid touching people on the head, and keep your feet on the ground where they belong. Stay calm, smile and enjoy the hospitality of your hosts.
The official language is Thai, but English is widely spoken in all major tourist locations.
The 'Wai' is the traditional Thai greeting which is used instead of a handshake, but it can also be used as a means of saying sorry, thank you, or to pay respect.