去到學校之後好似要報 and then 排隊入禮堂 (just 1 parent and kid). Then parent stay in 禮堂 and kid 排隊 go to class room to have interview. Just about 10 mins. Questions not too difficult but I think 有禮貌 is more important.
Remember don't arrive too earily, too much people and the kids may want to play in the playground if they see it. As you know it's still quit hot and if you let him/her play, he/she will be wet. But if you don't let him/her to play, they will be sad and may affect the interview 心情.