DOYLESTOWN, PA—After three hours of watching Canada take on Denmark in women's curling Friday, regulars at the Cargo Grill in suburban Pennsylvania felt they had the rules and traditions of the sport sufficiently sussed out. "We basically think it's like horseshoes but with ice," bar patron Jim Comito said of the 500-year old sport. "The middle part of the bull's-eye thing is worth two points unless they both get their pot-looking thing in the middle. Tommy said they use the brooms to clear little ice particles out of the way, but I still think it's a static electricity thing." By the tenth end, the entire bar felt they had enough information at their disposal to chant "Curl! Curl! Curl!" at the television.