Take Metro Line 2 (14 Station) at the entrance and exit of Guangzhou Railway Station, and get off at Pazhou Station Exit A. Walk about 350 meters to the east gate of Guangzhou International Convention and Exhibition Center (Pazhou Exhibition Hall).
Take Metro Line 2 at the entrance and exit of Guangzhou Railway Station (14 Station) and get off at Pazhou Station Exit B. Go straight for about 350 meters to the south gate of Guangzhou International Convention and Exhibition Center (Pazhou Exhibition Hall).
Not if you go to Pazhou Station. Ask someone else. It is easy to find.