Humans, reacting to the alien presence, pray fervently. The babe may strike out at competitors, bonking another playmate, or snatch toys away for a personal horde. Unable to mold the nursery to one's liking, the babe may next pout. Sit in the corner, lower lip out, glowering. Perhaps non-participation will make it all go away.
Some babes pout forever, and make it a lifelong practice.
We find these humans turning their backs on evidence of the alien presence. In fact, the vocal skeptic is most likely to suddenly stop protesting and let it all sink in. Look to the history of avid believers and one will often find a skeptic. The skeptic gives birth to the advocate.