I agree with Booldawg. My youngest son was very shy. When he started school he didn't speak to the teacher until Christmas, and it's only in the last year that he's started to speak to one of my best friends, even though he has seen her fairly often over the years and we've even been on holiday together, our family and hers. My son is now 15, so it obviously takes a while for some children to overcome their shyness to the point where they can speak to people they know!