in terms of technique, try and keep the tip of your TT pointing towards the spec. where possible use the 4 fingers of yr hand as a "cover" but in a relaxed and natural way. as said earlier, keeping your hands moving helps, but again... relaxed and natural. practice in front of a mirror... A LOT!
for tricks, I enjoy making things disappear into a large dinner napkin, specs seem to focus on the napkin which gives you plenty of opportunity to misdirect and ditch your actual gimmick.
eventually, if you decide you really like using your TT, consider buying this:
http://www.penguinmagic.com/product.php?ID=912
thoroughly recommended.