University of Cambridge researchers studied the effects of hiding children’s eyes on their feelings of invisibility, and discovered some very interesting things about how young kids view their “self” versus their “body”, which you should check out.
“… it would seem that children apply the principle of joint attention to the self and assume that for somebody to be perceived, experience must be shared and mutually known to be shared, as it is when two pairs of eyes meet.”
Apparently kids only exist when you make eye contact with them. Remember that when you don’t want them to feel invisible.
Isn’t this the basis behind peekaboo?