On the afternoon of 25 February 2019, teachers and students of Ng Siu Mui had a very "blink blink" afternoon. Why? They visited the Prince Jewellery and Watch Company Limited in Tsim Sha Tsui. First entering the shop, they were attracted to lots of glittering watches and bediamonded products, which made them feel fascinated. Then, they were treated with nice personnel and exquisite refreshments. They learnt about diamonds and watches. Thanks to Project WeCan.