Xixon purports to be an authentic Spanish tapas kitchen, and we’re more than happy to take their word for it -- especially as long as they keep the sangria flowing.  The menu is long on tapas (shocker), so there’s bound to be something for everyone in the party.  The best thing going for Xixon is the atmosphere:  think Spanish kitchen, complete with the language barrier.  Flamenco on TV, a deli counter with meats and cheeses as take-home items, lively conversation -- there’s even cool wine tasting area with an underground vinoteca.  Order a bottle of cava (Catalan wine) and you’ll be swinging from a cured serrano ham in no time.