 When Zhou is <unk> in " Yangzhou storytelling " , he speaks in " Square mouth public talk " , which is a manner of speaking reserved for martial heroes , highly respected characters , or , sometimes , lesser characters that pretend to be an important hero . Square mouth public talk is actually a mixture of two forms of dialogue : <unk> and <unk> . <unk> ( square mouth ) is a manner of steady , yet forceful over pronunciation of dialogue that was possibly influenced by Northern Chinese opera . <unk> ( public talk ) is monologue and dialogue that is sometimes used for " imposing heroes " . This mixture of styles means Zhou Tong is treated as a highly regarded hero . 
