Style -can vary widely - let it come naturally - donít try to be something you arenít Ė if youíre naturally businesslike, but not all bubbly that should be just fine Ö as long as itís respectful and polite.

Isolation - focus on listening to them and worry about stuff like sources AFTER you understand the message
Bad advice in the geographical sources chapter.

Success - doesnít necessarily mean an answer - a positive experience is fine.
Recent brouhaha about 55% rule Ö