At a century-old teahouse in Hong Kong, a crowd of about 30 people huddles around tables packed with dim sum on a Thursday morning as they watch South Africa score against South Korea in the World Cup. Lin Heung Lau’s branch in Sheung Wan has become one of the city’s most unlikely venues for catching the football after it opted to capitalise on the World Cup, with its design and marketing director saying the place had reaped several benefits. The business spent more than HK$200,000 (US$25,500)...