How good are you at dancing the bachata? It’s a salsa -like, very romantic partnering dance from the Dominican Republic that you can learn in lessons this Friday at the Main Plaza in Salesforce Park. You’ve got plenty of time to get the steps down. The party there lasts from 6pm to 8pm. The music is live, the teachers are pros also teaching you to salsa and the whole shebang is free. Happy to report that downtown SF, at least parts of it, is becoming a party.