Paralinguistic cues are non-verbal vocal features that add expression to speech. These include qualities like volume, pitch, rate, articulation, pronunciation, and pauses. Voice quality depends on vocal resonation and can be rich or thin. Volume should project but not always be loud. Speaking rate should vary between 120-150 words per minute. Pitch is controlled by vocal chord tension and air supply. Articulation and pronunciation impact clarity, and modulation, word stress, and pauses affect engagement. These paralinguistic cues give speech human touch and life beyond the written word.