- Hire your own interpreter - If you're a company starting to do business internationally and meet with clients who don't speak English, hire your own professional interpreter.  Don't rely on your client's interpreter because that person's loyalty is to them, not you. 

- Know the different types of interpretation. With consecutive interpretation the speaker pauses after short segments to allow for interpretation.  With simultaneous interpretation, the interpretation takes place just seconds behind the speaker for a continuous flow with few interruptions.  This is the most difficult type of interpretation and requires not only the most skilled professional, but generally two interpreters who will take turns every 15 - 20 minutes.  Be prepared to pay more for a simultaneous interpreter as well as for two.  [Note: some interpreters will only do simultaneous if they are using interpretation equipment.]