"When cultures mix there are many unknowns, such as different accents, unfamiliar body language and tones of voice. There are also different communication styles, customs and protocols. This can lead to participants being self-conscious and nervous about doing or saying the wrong thing, with a fear of appearing incompetent or inappropriate. In business we all have a certain identity we wish to maintain and do not want others to form negative opinions about us. All these factors produce tension."