Expressive vocalization refers to the use of vocal sounds to convey emotions, intentions, or messages beyond mere words. This can include variations in pitch, tone, volume, and rhythm, allowing individuals to express feelings such as joy, sadness, anger, or excitement. It is commonly observed in both humans and animals, serving as a vital form of communication. In humans, expressive vocalization is often seen in activities like singing, acting, or public speaking, where the voice is used to enhance emotional impact. In animals, such as dogs or birds, vocalizations can indicate distress, mating calls, or territorial claims, showcasing the importance of vocal expression in social interactions.