Motion sickness wristbands can be purchased at travel stores and work very well to stave off nausea. Communication Language is central to the communication process. While English is probably the most commonly used language it is not spoken everywhere. Even where it is used there may be differing levels of comprehension and different meanings may be attributed to certain words. When using a non-native language, remember that clear, slow enunciation, not volume, is the key.
Communication includes both spoken language and non-verbal expressions.
While an interpreter can help, your ability to pick up non-verbal cues and respond accordingly will be important to the communication process. People in some countries tend to be very emotional, and others rely on very subtle body language to communicate their feelings. Rules of etiquette differ from culture to culture and what is acceptable in your own country may be considered rude elsewhere. Some countries demand the use of respectful titles when addressing people while others are more informal. For example in Japan, the accepted form of greeting is the bow.