For all those going to Thailand, learning some basic words in Thai and using it, will be interesting and the local people they are happy to hear you speaking Thai. I have compile a few basic Thai phrases:
Hello/good morning ----- Sawatdee krup/kha
Thank You ----- Kob Khun krup/kha
How are you? ----- Sabai dee mai?
Fine, Thanks ----- Sabai dee
Where is the toilet?----- Hong nam yu tee nai?
How much does this cost?- Nee thao rai?
That's too expensive----- Peng mai
Is there any discount?--- Lot noi dai mai
Goodbye ----- La gon
Sorry ----- Koh thot
Yes ----- Chai
No ----- Mai Chai