"Uh" is a common vocal filler used in spoken language. It often indicates hesitation or uncertainty, allowing the speaker a moment to think before continuing. People use "uh" to signal that they are still engaged in the conversation, even if they need a brief pause. In communication, fillers like "uh" can serve various functions, such as softening statements or giving the impression of thoughtfulness. While some may view it as a sign of indecisiveness, others recognize it as a natural part of speech, similar to other fillers like um or like.