How to Learn Some Thai Words for everyday use

Thai People will Respect to senior By say SA WAS DEE KRAB or KA (KRAB endind polite for men and KA for Women) with put tho hands (Palms) together call "WAI" to express respect to his or her senior such as teacher ,Parents ,elder person and relate.
Next Thai people may Ask about your healthy Say in Thai SABAI DEE MAI? Mean in English How are you?
Next Thai people would Ask about eating : Say in Thai KIN COW RUE YONG? In English mean Have you eaten? 
For sure if you say No ,They probably invite the guest to have lunch or dinner together because it it a Thai culture to express the hospitality to the guest who come to visit or call on and they really expect the guest to answer Yes indeed.
Next Thai people may ask you about personal information such as KUN MA JAK PATED ARAI  ? What is the country that you come from? KUN TUM NGAN ARAI? What do you work? 

Credit image: http://www.toplinediamond.com/TabNews/TabNewsDetail/6568
So if you come to Thailand and if you want to pick up some greeting word in Thai then try to say SA WAS DEE KRAB / KA with WAI similar to the picture.