my daughter become silent in front of strangers or even with the people she meet in lift frequently..if they say hi she doesn't respond

A. Some kids have basic strange anxiety and that is why they behaved like that they just go very quiet as if they do not know anything they just observe in their as if they have seen an alien and it’s a very common thing with kids okay so do not worry about it try to take your child to the park and try to make your child friendly if somebody come across in the lift so try to boost your child to be more friendly with others