I may be a moron picking up girls but if I actually get with one it's another matter.
The neck is absolutely money, and I find it the sexiest part of a woman. With some women you can just feel the energy under the skin... it sort of starts down by the collar bone and goes straight up to underneath the ear... and peaks at the earlobe.
One girl I was with (I say girl because she was 19) said she almost came from me just biting her ear. I'd taken so much time... lightly kissing her face, her lips, her lower neck... then sliding slowly up the side of the neck until grazing her ear with my nose then ever so slightly nipping the lobe. She practically lost it, even though we were in the back corner of a club (thank you darkness my old friend).
Maybe I'm good at this because the same thing works on me. A woman kissing my neck and biting my ear gets me harder than her face in my crotch. Wierd.
And yes, breathing is a big part of this. It's like showing your presence but not actually touching her... a MAJOR tease.