DHVing is basically not qualifying for her and having the willingness to walk away. Your primary focus should be escalating and being seductive/sexual threat. Also done by avoiding to break rapport with her when she baits you into it.
I was with a friend one time and said hi to this one girl I knew for a few weeks. She fucked up and I didn't like her anymore, moved on to another girl (well, had other girls meanwhile but you get my drift). Anyways, she asked me, "How come your friend is dressed nicer than you?" I said, "Because he has more style than me.

" She laughed and I laughed too and then she told my friend in a serious tone, "I like your style." In other words, you refrain from dealing with childish bull.