why 4yrs boy puts his head down when sees some new strangers not with all strangers but he talks with some strangers and while sees some strangers he keeps his head down

A. See it’s a child’s own anxiety with some child is very comfortable with some they have a very massive stranger anxiety or they feel petrified or not comfortable with that person which is why they don’t entertain that person it’s a very natural thing which will get better over the period that interaction may be similar and even if it is not it is completely alright it is just the comfort of your child