The boy in the grey t-shirt swept out his arm and arched his torso in an elegant bow-shape as the “bull” charged within an inch of his hip. Then he pivoted on one foot and flicked the cape at his opponent’s head. The red fabric spun and twirled, daring the sharp, curved horns to come closer. They were two Limeno kids, dressed in tracksuits and sneakers, practicing bullfighting passes in Parque Leoncio Prado this morning. One boy held a pair of bull’s horns mounted to a wooden handle. The other boy took turns practicing with red and pink capes and various swords. Nearby on a park bench, a slim middle-aged man called out instructions and exhorted them to…