Learn the interpersonal communication conventions when dealing with your international partners. For example, if your proposal is met with silence in Japan, it does not necessarily mean that the audience doesn’t like your idea; it can also mean that the customer is deliberating and thinking. In fact, speaking too quickly can be perceived by the Japanese as being impatient and having poor negotiating skills.
Norms of accepted behaviors are deeply woven into a culture. People from the culture may not even be aware of those conventions. Americans, for example, are often unaware that they are perceived as being overly talkative by some Europeans. Effective communicators are aware of how they may be sending unintended or inappropriate messages.