Thai people prefer to build personal relationships before discussing business. Very often, issues will need to be repeatedly discussed and at many different levels before any decisions are made. Therefore, it will be likely that several meetings will take place before anything gets started. Initial meetings will always take place over lunch or drinks and entertainment is part of developing business relationships. Thai people generally value enjoyment (kwam sanuk).
Thai people laugh very easily and a foreigner can minimize his errors or embarrassment through laughter. If somebody starts laughing without any apparent reason, it is best to change the subject. He or she is probably embarrassed.
Body language is important in Thai communication and respect and politeness should always be shown. Being receptive to subtle body language and indirect replies will help to avoid confusion and misunderstandings.
Appointments for meetings should be made well in advance. It is a good idea to confirm the details of the meeting the day before the arranged day. By arriving on time, you are showing respect and foreigners and Thai people are all expected to arrive on time.
A business card should be offered with the right hand. Take time to read the card and make a polite comment about it.