What cultural do not in Thailand
Don’t hug a Thai to show him your appreciation. In Thailand a firm “Thank you very much” or wai with your head bowed is enough. (For the hug, he/she will most probably not like it.)
Don’t ever touch anyone’s head for any reason. The head is the most important part of the entire body.
Don’t point with the forefinger at people, especially at a person’s head.
Don’t place your feet so that the soles point toward any person, religious image or picture of the royal family.
Don’t step over another person if he/she is in your path, instead, simply walk around that person.
Don’t walk into someone’s house with footwear on, most house require you to remove your shoes outside the front door.