he acts really huffily when people he knows speak to him, ask him questions etc, really embarassing when it happens.
Today it was nursery teachers and friends that he knows well and yet he refused point blank to even say hello, hiding behind my back.
At first I thought it was just shyness and his age but he seems to know exactly what he's doing and doesn't seem to be getting any better doing it more and more, is this normal and how do you deal with it?