I arrive at domestic Baiyun at Terminal 1 & like to go to int’l arrival Baiyun T2. How to go there?

Taking China Easter Airline from Shanghai to Guangzhou, I will arrive at domestic Baiyun at T1. But I have to meet my brother who is arrive at Baiyun International (CAN) Terminal 2 by China Southern Airline. How & where should I go from Domestic arrival T1 to International arrival terminal 2 to meet my brother? Since we will together to stay at GZ for sightseeing.