system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we say things like 'uh' and 'um'?
gpt
It is a filler we use. When we are speaking, often we need to gather and formulate our response before we speak. We also feel the need to respons as soon as possible when spoke to, even if we have not gathered our thoughts. These filler noises do not interfere with our thinking as speaking does, recall how hard it is to speak on one subject while actively thinking about another. These noises acknowledge that we are spoken to or that we are not done speaking while enabling us to continue to formulate our response.