Editorials Four Five Six, Turn January 07, 1998 Share 1 -- Forget the macarena (most people would like to anyway). The tango is back! Proof positive of the revival of the dipping, toe-pointing, passionate-pose dance can be seen each Wednesday night in the rose-marble and mahogany lobby of El San Juan Hotel & Casino in San Juan. The tango is not Insider's dance of choice (coordinated swirling is not our strong suit), but the people-watching is the best show in town and the costume display is eye-boggling. Best of all, it's free. No cover charge, no entrance fee, no admission. Just plop down under the crystal chandelier to gape, or, if you're of a mind to, head for the dance floor. The only rule: It still takes two.