HI, WHAT IS THE BEST WAY OF GETTING FROM HONG KONG TO SHENZHEN AIRPORT

There are direct cross-border buses.
This kind of bus can be found in almost popular places in HK such as Wan Chai, Sheung Wan, Causeway Bay (Times Square), Edward Prince, Tsim Sha Tsui area and so on.
Would you mind tell me which part do you stay, so that I can tell you a suitable places to board the bus in HK.