David in the Mandarin Oriental Hotel is one of the best shirt makers. Check out Pacific Place and Times Square Malls for the indoor mall experience. Malls are malls, but these are still different. The Jade Market. Do not buy expensive jade unless you know what you are doing.
Most Chinese people can only sort of tell so join the club.
Very close to Temple Street Market. A day market. Get there by walking along Nathan Road until you hit Temple Street. Great Reclamation street market on Sundays. Temple in the park on.