Ask me Thailand

I'll be going in Thailand in a few months for a vacation with my girlfriend. What are the things that I need to know before going in to this beautiful country that I've always wanted to visit? I mean I don't want it to be an unpleasant experience so please help me with the dos and don'ts! Thanks!

It really depends on what kind of person you are. Are you going backpacking style or are you more of resort person?