Useful tips by Matthew Perret
Matthew gives some tips on how to behave in an interpreting booth, and on how to speak at a conference if your words are being interpreted (with comical examples of how not to...):
http://www.youtube.com/watch?v=vZXz6bTB3JE&feature=feedlik
http://www.youtube.com/watch?v=JU5s0zkd-eo