Congrats on the trade, and double-congrats on going for the manual transmission!
Learn to be smooth. Learn rev-matching (google it). Lots of fun, way more efficiency potential than an equivalent automatic.
Others already answered, but:
http://ecomodder.com/forum/showthrea...rmula-352.html
Start a fuel log.
Get fuel consumption instrumentation! You'll need an MPGuino, since your car is pre-OBD-II. Makes driving for efficiency more fun, plus instant feedback is critical for optimizing your technique.