Since her appointment to the Supreme Court in 2009, Sonia Sotomayor has stood out. The nation's first Latina justice is also its most extroverted; not only does she ask far more questions during oral arguments than her predecessor, David Souter, but she also has refused to indulge the court's pose of Olympian detachment. William Rehnquist never threw out the first pitch at Yankee Stadium, and I don't remember Antonin Scalia making an appearance on Sesame Street. If John Roberts knows how to salsa dance, he certainly hides it better than she does.