Whenever you speak Thai language if you're  a man,  you should end the sentence with the  word  khrab and kha for woman.  You should say it after sawatdee  (Greeting / Hello, Hi) and kharb koon (Thank you). Sometimes we use khrab and kha for "yes".   If you hear Thai people talk  on the phone you might here them say only "khrab khrab khrab" all the time.

             If  you want to speak Thai you should listen  to  Thai people speak English becasue they will do it in a Thai accent for example they won't say the letter at  the  end  of  the  words,  like important"   will sound like "importan", "most" will sound like "mose",etc. Also Thai people won't have the little explosion at the end of map,we will close our  mouth  after "p"  but English people will end with their mouth open. A good example in Thai is "khrab", don't open your mouth after "b".

            Thai people will also break the word up for example "smile". We will say it as "sa-mile", "sport" will become "sa-port","summer" will become "sum-mer" and in this case Thai people will make the last part louder.

            One of the most difficult things about speaking  Thai is the tones becasue there are 5s tone to remember.   There are low, middle, high, falling and rising, if you say it in the wrong tone, the word will have a different meaning.