The mistake made by most caucasian guys when dancing to Hip-Hop is that they tend to dance from their shoulders and end up looking all lanky with limbs flailing everywhere. Women ALWAYS look good when they're dancing - why? Because they dance from their hips and let their bodies follow.
My advice is to just go out on the floor with a woman and follow her movements. Respond to what's she's doing and you'll be bumpin and grindin in no time
