I'll be visiting the dR for nearly a month in January

Hello everyone, over the summer I made a few Dominican friends who came over to work at Hershey Park. I miss them already, so I decided to visit from the end of December to the 17th of January.

I'd like to know anything you guys think I should know before I go. I really mean anything. Music, history, current culture, good spots. Slang. Anything.

Thanks, appreciate any replys.