Lose all sense of time
Basically when you step into Haiti you need to lose the watch because nothing happens when it is suppossed to. If your guide says he will meet you at 10:00am, it will most likely be 2-3 hours later. If they tell you to hurry up and get ready, you will hurry up, then wait an hour. This is really frusterating if you are not prepared for it. So just sit back, relax, and enjoy the sunshine or you will end up with high blood pressure!