There's no "trick" to it, just familiarity. The advantage to learning and using the Latin names is that everyone will know exactly what species you are talking about. Common names have a way of changing from person to person, region to region etc. A good example is what we know as Ball Pythons here in North America are called Royal Pythons in Great Britain.
:eb: Scotty Allen :eb:
"For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return." -- Leonardo Da Vinci