Grinding with girls at parties?

Just go up to her and ask her to dance or just come behind her and start dancing. If she's not feeling it she'll probably just walk away, but most likely she will dance with you. The girl will pretty much be doing most of the work so hold on to your beer with one hand, far enough away that you won't spill it on her, and hold her waist with your other hand. It's even better if you put your hand like by her lower stomach, below her bellybutton. Makes for better grinding in my opinion but for some girls that might be too close for comfort so proceed with caution. For the surfing thing, I've never seen it or done it but you could always take her hands, nothing wrong with that I guess.

1) you could try and be smooth and just kinda start dancing up behind her if she wants to dance she'll keep dancing and if not she'll just walk away.

2) you introduce yourself and if she looks interested ask her to dance. If the music is too loud just look at her, smile and give her like a nod she'll get the idea and will either take you up on your offer or walk away.

As for your beer hold your beer in one hand (try not to spill it on her) and put your other hand on her waist. Different girls do dance differently but you should be able to pin down her dancing style in less than a few minutes and just try and adjust yourself to her dancing style.

you just go out on the floor and dance..come up from behind and if the girl wants to dance with you she will just keep dancing and start grinding..she knows what to do..and the cup just hole it to the side with your hand w/e is comfortable and you don't spill it...dont put your arms around her waist until you dance for a while, first just dance behind her...i have never seen a girl putting her arms straight out like surfing style lol but if she does let her do w/e she is doing..just keep dancin

I agree with smokeandmirrors. To add to her though, I usually don't mind if they come up to me, but once this dude came out of nowhere to rum his hand from below my boobs to damn near down my vagina. That was pretty uncool.