what do you ladies REALLY like when a guy goes down????

[Confused Rob]

Hi,

I feel slightly embarrassed asking this, but I figure 5 mins discomfort is far better than a LIFETIME of ignorance, so please help.
I dont concider myself to be "bad" at giving head, (I've certainly never had any complaints!!) but I would like to know ALL the different "methods" that you all like so much.
I REALLY want to surprise my girlfriend when I see her when she gets back from holiday.
Any pointers would be great.
Thanks ladies!!

Rob