Communication in oral-deaf students without cochlear implants is typically less frequent and less complex than hearing peers of the same age. These expressed communications are less clear than that of their hearing peers. Linguistically, these communications are typical of the language skills seen much earlier in their hearing counterparts. Despite efforts to encourage the sole reliance on speech and spoken language in oral schools, some oral-deaf individuals developed sign systems among themselves in non-supervised settings. Additionally, oral-deaf children often used manual gestures/signs simultaneously or in addition to vocalizations during expressive communications at home.