How to act as a foreigner
Travel tips of Thailand
Dress properly when entering a Buddhist temple. Mini skirts and shorts are not allowed. Take your shoes off before going inside the hall of worship. Ladies must not on any account touch a Buddhist monk, give things direct to him or receive things direct from him
Thailand is Buddhist country where Buddha images are held sacred. Sacrilegious Acts are punishable by imprisonment even if committed by foreign visitors.
Thai people hold their King and Queen and the Royal Family in great reverence, and so won't tolerate foreigners talking about them in disrespect. Generally Thai women are conservative. So don't touch them without their consent. Intimacies between man and woman should not be shown in public. Sunbathing in the nude is prohibited.
Call Thais their first names: use the title "Khun" for adults. Thai people smile to express gladness and happiness, to thank for small services, to return the wai (a way of greeting) of children and inferior persons, and event to excuse small inconveniences.
Don't touch a person's head, nor ruffle his hair. The head is the noblest part of the body. A sincere apology should be offered immediately if you touch someone's head unintentionally.
Avoid placing your feet on the table while sitting. Never use your foot to point things out or to touch any part of the body of anyone, which is considered rude.
Entering a Thai house, you're expected to remove your shoes.