Indonesians value relationship building and harmony so avoid hard selling, pressure tactics and any sort of conflict or confrontation.  Saving face is paramount.

Decisions are usually made the top down and can take awhile, so patience is a must. 

Indonesians will avoid using no in answering questions.  They tend to say, “maybe”, or “that would be difficult” or even “yes” or “no problem” even if the answer is really no. 

Sucking in air through your teeth is another way of meaning no.