Guys, do you like it when girls bite/lick their lips?

When a girl has her hair pulled back in a ponytail or just tossed over one shoulder. Exposed shoulders are very sexy. Especially when she rubs her neck or shoulder.

When a girl bites and/or licks her lips it's definitely sexy! Those articles weren't lying when they said it drives guys crazy. The other thing I like it the "puppy" face, and when a girl nibbles at her nails (note: I said nibble, not bites/gnaws/eats)