A friend is in the wedding party at a Dominican wedding this weekend. He's been brushing up on his Salsa and Merengue. He lived in Costa Rica for two years so he had plenty of experience in Latin dance clubs. He says, "With Latin Americans, you can't get chicks if you can't dance." I said I thought Merengue had a bit of happy grinding. It does.
You can learn those dance rhythms and moves on Youtube.