Knowing how to dance, like owning a handkerchief, being good at archery, and resisting the urge to draw mustaches on babies, is a mark of a true gentleman. Engage in some chivalry with today's Groupon: for $15, you get a general admission ticket (a $28 value) to the Rhythm Revue Dance Party with Felix Hernandez, which takes place at NJPAC in Newark on Saturday, December 18 at 8 p.m. Featured on the Best of New Jersey, the Rhythm Review will see disc wrangler Felix Hernandez, a digital maestro for WBGO 88.3 and KISS FM 98.7, spin smash hits and forgotten gems mined from the 1960s, 70s, and 80s, decades known as America’s three escalating puberties. A cash bar and refreshments will be on hand for electric slide fuel, so you and your friends, significant other, or choreographically gifted accountant can dance on through the night.