News Snapshot: Visitors to a retirees’ social club in a Kwun Tong public housing estate are greeted by Tung Zai, the voice-activated robot receptionist. They can ask a question in Cantonese about the day’s activities at the centre by pressing a button on its head. Press a button on its stomach, and Tung Zai will make a random comment, offering healthy lifestyle tips , perhaps, or deliver a compliment such as: “You are very pretty!” It can also tell jokes and Quote: Chinese poetry. “I’ve never seen anything like this before, I like it so much,” said Chu Sau-lin, 66,...