Interesting thread!
My "technique" tends to change depending on who I'm with:
the first girl I was with tended to get very worked up from oral, so I spent some time learning to do that well. It paid off, since that was something that she greatly enjoyed. We were really young, so things were never too adventurous.
my second was very shy about her sexuality, so usually just kissing or other "tame" stuff got her in the mood. Sometimes massages/backrubs got involved, but she tended to be more into stuff that was "cute" or tame...
The girl I'm currently interested in is much more secure with her sexuality, and tends to be more open (from what I've seen, we've only recently become physically involved). With her, biting is a sure way to start things. We haven't really gotten the chance to be more adventurous yet (she lives 850 miles away), but so far biting/scratching has worked well. We're both into biting, preferably with some force, which is awesome, since I've always wished I could find someone as turned on by that as I am.