Teachers in my daughter's school bus are cheerful.
We don;t have much communications but one teacher calls her name and asks her to be careful when going down the stairs.
My son is alos taking Kwun Tong Purple line. Yesterday, when I picked up my son, one grandma asked the teacher did her grandson sleep in the bus. The teacher then asked the kid that did you sleep. The boy just shaked his head. The teacher then come back to the grandma that "no". It proved that the teacher didn't really took care of the children in the bus.
Probably the teacher cannot recognised all the kids' name in just 2weeks. Especially if your child is in a big coach instead of a small van!!! so, give the some time la!!!!
Sometimes, teacher would like to encourage child to answer questions on the own, instead of anwser on behalf of them!!!