Which we humans do all the time. Okay, like, so, hear me out, alright? See, what’s really going on, yeah, is…

Which is so cool because it's an evolutionary/language thing.

Why do we add junk words while we think? I think it's probably because we're social animals, we want to hold that person's attention as we think as periods of silence are likely to make them become disengaged. But who knows really.