Gelled hair? Check. Dark tan? Check. Abs of steel? Check. Easy to see how patrons at Kenmare mistook Portuguese soccer star Cristiano Ronaldo for a “Jersey Shore” castmate. As he walked into the dining room Wednesday, decked in a snug black shirt and pale slacks, one diner exclaimed, “Oh, my God, it’s The Situation!” — referring to Mike “The Situation” Sorrentino, the beefy reality star known for his toned midsection and aggressive pursuit of women. But Rolling Stone Keith Richards was recognized immediately when he stopped in later.