I think you'd better go to these top Attractions of Hong Kong(https://www.travelchinaguide.com/attraction/hongkong/) not far from BP Hotel, which is located in Tsim Sha Tsui. You could take metro a the StarFerry to visit Hong Kong Islan, where the Victoria Peak, Peak Tram, Central and Causeway Bay are must. At night, you could walk along the Victoria Bay to watch the splendid A Symphony of Lights, Hong Kong(https://www.travelchinaguide.com/attraction/hongkong/symphony-of-lights.htm). Of course, don't miss the Avnue of Star here as well. Finally, you could do shopping in the prosperous Tsim Sha Tsui area. Christmas sales could be found everywhere.