Thailand is an awesome country to live in and also enjoy your life at. It can teach you a lot when it comes to living your life to the fullest and also accepting some hard realities of the world as well. Thailand is one of the rapidly changing environments, and is currently one of the highest paced growing countries in east-asia. A lot of foreign investors are staking claim, and there are lot more of their employees who end up moving there for work reasons as well.
Have your plans at the ready
Although moving to a new country will be seemingly a romantic Notion (especially when you consider a tropical paradise), it is not so romantic when you run into trouble. Without a proper plan to settle down in the country you will run out of money soon, for sure. Thailand is considerably cheaper when you consider living expenses of the western world, but when it comes to things like long term rental in Phuket or just getting a place for more than a month or so, the rates can be quite the shocker. You will also have to consider other expenses such as getting your thing shipped there, doing all the documentations (and paying those fees), and living without financial troubles if you do not have a job offer by the time you move.
Arrive a month before your settling/ working date
Thailand is an amazing place to stay at, but if you plan on staying for long then you may consider that you have all the time in the world. This is not going to happen especially if you are going there for work. You will be working regular working hours and sometimes on the weekends just as at any other job, and you will be hard pressed to get some days off (also just like any other job). So do your travelling and sightseeing before you go for the settling down activities. If you do your sightseeing when after planning well then you can get some things like apartment for rent Pattaya hunting done at the same time.
Just because you come from a foreign land, it does not mean that people will forgive you for ignoring their customs and traditions. You will find that people tend to be less forgiving if you end up offending them more than once. Always be pleasant, respect their religious and cultural sights and habits, keep your appearance professional and make sure that you slowly but surely learn about the country and its people.