Hickeys are caused by guys going crazy with sucking the neck skin until blood comes to the surface. I am fairly sure that she will be more happy with very light kisses and licks on the neck more or...
Depends on the situation...the neck is a sensitive spot, could be romantic or threatening depending on the circumstance haha. Since it's usually pretty obvious when somebody's choking you, we'll...
Anyone can get a hickey if you suck on their necks, arms or what ever bodypart you choose. Some think it's cool to show they have one after making out with someone and some don't.