One thing is for certain: When these boys step off the set of "GG," they quickly shed their Upper East Side looks in favor of tank tops and skinny jeans. But which of these dapper dudes does casual better? Ed Westwick ran around New York clad in black with a rosary around his neck. A bearded Penn Badgley got down with a red-white-and-blue pattern tank and gray pants. Neither left home without their aviators. How hip.