system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why do we "uhh" when we're trying to find words?
gpt
When you are in a dialogue you open up for others by not talking. However if you just pause to think you do not want to allow others to start talking so you need to fill the pause with something. A simple utterance like "uhh" or "mhh" or filler words like "you see" or "right" is often used as they do not require the speaker to think about what to say. One of the things people who are good at holding speeches do is to just let the pauses be silent as you do not need fillers in a monologue.