DS is 3 almost 4.
He goes to nursery 5 days a week and while he is there, he is so sociable, he plays with everyone and everyone knows him.
However, any time he goes to a party he becomes shy and clingy and wont join in. At all.
Have tried everything. A few of the parties were at soft play and I just put his lack of joining in down to tge fact he doesnt like soft play, he has always been a bit scared of the noise and chaos.
Today he went to a party in a hall, thought this may be different as his best friend from nursery was there, but again, no joining in. Just wanted to play with balloons with daddy, would cry and freeze if you even started to try and join in.
I just dont understand, he is normally so sociable. I feel so sad for him playing by himself at parties 