Hyperlexia of hyperlexia. They follow a different developmental trajectory relative to neurotypical individuals, with milestones being acquired in a different order. Despite hyperlexic children's precocious reading ability, they may struggle to communicate. Often, hyperlexic children will have a precocious ability to read but will learn to speak only by rote and heavy repetition, and may also have difficulty learning the rules of language from examples or from trial and error, which may result in social problems. Their language may develop using echolalia, often repeating words and sentences. Often, the child has a large vocabulary and can identify many objects and pictures,
You Don't Know What to Do that have yet to enter the main Ultratop 50 chart, and number 2 on the South Korea download chart. "You Don't Know What to Do" garnered critical acclaim amongst music critics: many complimented the disco revival and throwback style, calling it the best track on the album, and compared it to the works of Jocelyn Brown, Daft Punk, Chic and post-revivalist songs produced Pharrell Williams. Carey and Wale performed the song for the first and only time on the "Today" show in the United States. "You Don't Know What to Do" was written by Carey, Jermaine Dupri and Bryan-Michael Cox,